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 |
|---|---|---|---|---|
| 2025-02-03 | ONEOK FIELD SERVICES CO LLC / PACKSADDLE COMPRESSOR STATION | ARNETT, Ellis, OK | Pass | State |
| 2025-02-03 | BCE MACH III MIDSTREAM HOLDINGS LLC / ELMORE CITY GAS PLANT — high-priority violation on file | ELMORE CITY, Garvin, OK | Pass | State |
| 2025-02-03 | BCE MACH III MIDSTREAM HOLDINGS LLC / ELMORE CITY GAS PLANT — high-priority violation on file | ELMORE CITY, Garvin, OK | Pass | State |
| 2025-02-03 | TOM STACK LLC / CHISHOLM PLANT | CASHION, Kingfisher, OK | Pass | State |
| 2025-02-03 | TOM STACK LLC / CHISHOLM PLANT | CASHION, Kingfisher, OK | Pass | State |
| 2025-02-03 | MARKWEST OKLAHOMA GAS CO LLC / CALHOUN COMPRESSOR STATION | MCALESTER, Pittsburg, OK | Pass | State |
| 2025-01-31 | TALL OAK WOODFORD LLC / SOLERA COMPRESSOR FACILITY | MCALESTER, Pittsburg, OK | Pass | State |
| 2025-01-31 | TALL OAK WOODFORD LLC / SOLERA COMPRESSOR FACILITY | MCALESTER, Pittsburg, OK | Pass | State |
| 2025-01-30 | MARKWEST OKLAHOMA GAS CO LLC / OKARCHE COMPRESSOR STATION | OKARCHE, Canadian, OK | Pass | State |
| 2025-01-30 | DCP OPERATING CO LP / BAY BOOSTER | CEMENT, Grady, OK | Pass | State |
| 2025-01-30 | ET GATHERING PROCESSING LLC / CARTERSVILLE COMPRESSOR STATION | KEOTA, Haskell, OK | Pass | State |
| 2025-01-30 | ET GATHERING PROCESSING LLC / RED TANK COMPRESSOR STATION | ROLAND, Sequoyah, OK | Pass | State |
| 2025-01-29 | ONEOK GAS TRANSPORTATION LLC / SALT CREEK COMPRESSOR STATION | DEPEW, Creek, OK | Pass | State |
| 2025-01-29 | MARKWEST OKLAHOMA GAS CO LLC / CUSTER STABILIZATION STATION | ARAPAHO, Custer, OK | Pass | State |
| 2025-01-29 | MARKWEST OKLAHOMA GAS CO LLC / CUSTER STABILIZATION STATION | ARAPAHO, Custer, OK | Pass | State |
| 2025-01-29 | ET GATHERING PROCESSING LLC / BISHOP 1 COMPRESSOR STATION | ARNETT, Ellis, OK | Pass | State |
| 2025-01-29 | ET GATHERING PROCESSING LLC / WOLF CREEK COMPRESSOR STATION | SHATTUCK, Ellis, OK | Pass | State |
| 2025-01-29 | BCE MACH III MIDSTREAM HOLDINGS LLC / SOUTH OF LINCOLN COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-01-29 | BCE MACH III MIDSTREAM HOLDINGS LLC / SOUTH OF LINCOLN COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-01-29 | DCP OPERATING CO LP / CROSSROADS COMPRESSOR STATION | MARLOW, Stephens, OK | Pass | State |
| 2025-01-29 | DCP OPERATING CO LP / CROSSROADS COMPRESSOR STATION | MARLOW, Stephens, OK | Pass | State |
| 2025-01-28 | MUSTANG GAS PRODUCTS LLC / RODMAN GAS PLANT — high-priority violation on file | DRUMMOND, Garfield, OK | Pass | State |
| 2025-01-28 | ET GATHERING PROCESSING LLC / TABLER COMPRESSOR STATION | TABLER, Grady, OK | Pass | State |
| 2025-01-28 | ET GATHERING PROCESSING LLC / TABLER COMPRESSOR STATION | TABLER, Grady, OK | Pass | State |
| 2025-01-28 | MARKWEST OKLAHOMA GAS CO LLC / LOYAL COMPRESSOR STATION | LOYAL, Kingfisher, OK | Pass | State |
| 2025-01-28 | MARKWEST OKLAHOMA GAS CO LLC / LOYAL COMPRESSOR STATION | LOYAL, Kingfisher, OK | Pass | State |
| 2025-01-28 | BCE MACH III MIDSTREAM HOLDINGS LLC / NORTH OF LINCOLN COMPRESSOR STATION | CRESCENT, Kingfisher, OK | Pass | State |
| 2025-01-28 | BCE MACH III MIDSTREAM HOLDINGS LLC / NORTH OF LINCOLN COMPRESSOR STATION | CRESCENT, Kingfisher, OK | Pass | State |
| 2025-01-28 | SUPERIOR MIDSTREAM LLC / REEDING COMPRESSOR STATION | CASHION, Kingfisher, OK | Pass | State |
| 2025-01-28 | SUPERIOR MIDSTREAM LLC / REEDING COMPRESSOR STATION | CASHION, Kingfisher, OK | Pass | State |
| 2025-01-28 | DCP OPERATING CO LP / CROSSROADS COMPRESSOR STATION | MARLOW, Stephens, OK | Pass | State |
| 2025-01-28 | DCP OPERATING CO LP / CROSSROADS COMPRESSOR STATION | MARLOW, Stephens, OK | Pass | State |
| 2025-01-27 | ONEOK GAS TRANSPORTATION LLC / MAYFIELD COMPRESSOR STATION | MAYFIELD, Beckham, OK | Pass | State |
| 2025-01-27 | ET GATHERING PROCESSING LLC / SUPERCELL COMPRESSOR FACILITY | PURDY, Garvin, OK | Pass | State |
| 2025-01-27 | ET GATHERING PROCESSING LLC / SUPERCELL COMPRESSOR FACILITY | PURDY, Garvin, OK | Pass | State |
| 2025-01-27 | ET GATHERING PROCESSING LLC / SUPERCELL COMPRESSOR FACILITY | PURDY, Garvin, OK | Pass | State |
| 2025-01-27 | SUPERIOR MIDSTREAM LLC / BELMON GAS PLANT | TONKAWA, Kay, OK | Pass | State |
| 2025-01-27 | BCE MACH III MIDSTREAM HOLDINGS LLC / SOUTH OF LINCOLN COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-01-27 | BCE MACH III MIDSTREAM HOLDINGS LLC / SOUTH OF LINCOLN COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-01-27 | BCE MACH III MIDSTREAM HOLDINGS LLC / SOUTH OF LINCOLN COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-01-27 | SUPERIOR MIDSTREAM LLC / REEDING COMPRESSOR STATION | CASHION, Kingfisher, OK | Pass | State |
| 2025-01-27 | DCP OPERATING CO LP / CROSSROADS COMPRESSOR STATION | MARLOW, Stephens, OK | Pass | State |
| 2025-01-26 | IRON HORSE MIDSTREAM LLC / TERRITORY COMPRESSOR STATION | EL RENO, Canadian, OK | Pass | State |
| 2025-01-24 | IRON HORSE MIDSTREAM LLC / TERRITORY COMPRESSOR STATION | EL RENO, Canadian, OK | Pass | State |
| 2025-01-24 | DCP OPERATING CO LP / SUNDOWN COMPRESSOR STATION | BRADLEY, Grady, OK | Pass | State |
| 2025-01-24 | FW MIDCON I LLC / HATFIELD RANCH 0606 1 2 3 4 12 1WXH | CHICKASHA, Grady, OK | Pass | State |
| 2025-01-23 | UNIT PETROLEUM CO / STUTEVILLE 1 35 | HITCHCOCK, Blaine, OK | Pass | State |
| 2025-01-23 | MARKWEST OKLAHOMA GAS CO LLC / OKARCHE COMPRESSOR STATION | OKARCHE, Canadian, OK | Pass | State |
| 2025-01-23 | PEOPLES ELECTRIC COOP / CENTRAHOMA — high-priority violation on file | CENTRAHOMA, Coal, OK | Pass | State |
| 2025-01-23 | DCP OPERATING CO LP / DEAN BOOSTER STATION | POCASSET, Grady, OK | Pass | State |
| 2025-01-23 | DCP OPERATING CO LP / DEAN BOOSTER STATION | POCASSET, Grady, OK | Pass | State |
| 2025-01-22 | BCE MACH LLC / BRADY TRUST 32 28 12 PAD | CHEROKEE, Alfalfa, OK | Pass | State |
| 2025-01-22 | ET GATHERING PROCESSING LLC / TUSSY COMPRESSOR STATION | RATLIFF CITY, Carter, OK | Pass | State |
| 2025-01-22 | UNIT PETROLEUM CO / SARATOGA PAD | THOMAS, Custer, OK | Pass | State |
| 2025-01-22 | DCP OPERATING CO LP / DEAN BOOSTER STATION | POCASSET, Grady, OK | Pass | State |
| 2025-01-22 | DCP OPERATING CO LP / DEAN BOOSTER STATION | POCASSET, Grady, OK | Pass | State |
| 2025-01-22 | MAGELLAN PIPELINE CO LP / PONCA CITY STATION — high-priority violation on file | PONCA CITY, Kay, OK | Pass | State |
| 2025-01-22 | PALO DURO PIPELINES TEXAS GATHERING LP / SCOUT RIDGE COMPRESSOR STATION | REYDON, Roger Mills, OK | Pass | State |
| 2025-01-22 | PALO DURO PIPELINES TEXAS GATHERING LP / SCOUT RIDGE COMPRESSOR STATION | REYDON, Roger Mills, OK | Pass | State |
| 2025-01-21 | VALIDUS ENERGY II MIDCON LLC / SNYDER 3 19 18 1409MHX FACILITY | GEARY, Canadian, OK | Pass | State |
| 2025-01-21 | MARKWEST OKLAHOMA GAS CO LLC / THETA COMPRESSOR STATION | OKARCHE, Canadian, OK | Pass | State |
| 2025-01-21 | DCP OPERATING CO LP / DEAN BOOSTER STATION | POCASSET, Grady, OK | Pass | State |
| 2025-01-21 | DCP OPERATING CO LP / DEAN BOOSTER STATION | POCASSET, Grady, OK | Pass | State |
| 2025-01-21 | ET GATHERING PROCESSING LLC / SILVER STRATTON COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2025-01-21 | MARKWEST OKLAHOMA GAS CO LLC / ALPHA COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-01-20 | VALIDUS ENERGY II MIDCON LLC / DARRELL BENNETT 6 20MH | PIEDMONT, Canadian, OK | Pass | State |
| 2025-01-20 | VALIDUS ENERGY II MIDCON LLC / EVERY PAD | PIEDMONT, Canadian, OK | Pass | State |
| 2025-01-20 | ET GATHERING PROCESSING LLC / ALEX COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2025-01-20 | ET GATHERING PROCESSING LLC / ALEX COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2025-01-17 | TALL OAK MIDCON LLC / CARMEN COMPRESSOR STATION | CARMEN, Alfalfa, OK | Pass | State |
| 2025-01-17 | THOROUGHBRED GATHERING LLC / CYCLONE COMPRESSOR STATION | WATONGA, Blaine, OK | Pass | State |
| 2025-01-17 | THOROUGHBRED GATHERING LLC / CYCLONE COMPRESSOR STATION | WATONGA, Blaine, OK | Pass | State |
| 2025-01-17 | CHISHOLM OIL AND GAS OPERATING LLC / PINTAIL 2 21H 2 21 28H | CRESCENT, Logan, OK | Pass | State |
| 2025-01-17 | CHISHOLM OIL AND GAS OPERATING LLC / POLLARD 1 16H | CRESCENT, Logan, OK | Pass | State |
| 2025-01-16 | THOROUGHBRED GATHERING LLC / CYCLONE COMPRESSOR STATION | WATONGA, Blaine, OK | Pass | State |
| 2025-01-16 | THOROUGHBRED GATHERING LLC / CYCLONE COMPRESSOR STATION | WATONGA, Blaine, OK | Pass | State |
| 2025-01-16 | ONEOK FIELD SERVICES CO LLC / ICE COMPRESSOR STATION | CALUMET, Canadian, OK | Pass | State |
| 2025-01-16 | ET GATHERING PROCESSING LLC / KATIE COMPRESSOR STATION | ELMORE CITY, Garvin, OK | Pass | State |
| 2025-01-16 | ET GATHERING PROCESSING LLC / KATIE COMPRESSOR STATION | ELMORE CITY, Garvin, OK | Pass | State |
| 2025-01-16 | EOG RESOURCES INC / MUSTANG CTB | BLANCHARD, Grady, OK | Pass | State |
| 2025-01-16 | EOG RESOURCES INC / MUSTANG CTB | BLANCHARD, Grady, OK | Pass | State |
| 2025-01-16 | TOM STACK LLC / CHISHOLM PLANT | CASHION, Kingfisher, OK | Pass | State |
| 2025-01-15 | ET GATHERING PROCESSING LLC / ALFALFA COMPRESSOR STATION | CHEROKEE, Alfalfa, OK | Pass | State |
| 2025-01-15 | BCE MACH LLC / CLYDE HANSEN 11 2 14N 9W 2 3MHX PAD | CALUMET, Canadian, OK | Pass | State |
| 2025-01-15 | BCE MACH LLC / ZUM 28 13 7 4MH PAD | EL RENO, Canadian, OK | Pass | State |
| 2025-01-15 | ET GATHERING PROCESSING LLC / LION COMPRESSOR STATION | BLANCHARD, Grady, OK | Pass | State |
| 2025-01-15 | ET GATHERING PROCESSING LLC / LION COMPRESSOR STATION | BLANCHARD, Grady, OK | Pass | State |
| 2025-01-15 | TOM STACK LLC / CHISHOLM PLANT | CASHION, Kingfisher, OK | Pass | State |
| 2025-01-15 | TOM STACK LLC / CHISHOLM PLANT | CASHION, Kingfisher, OK | Pass | State |
| 2025-01-15 | MARKWEST OKLAHOMA GAS CO LLC / KINGFISHER COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-01-15 | MARKWEST OKLAHOMA GAS CO LLC / KINGFISHER COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-01-15 | EOG RESOURCES INC / LELIA 5X 1H PRODUCTION FACILITY | BLANCHARD, McClain, OK | Pass | State |
| 2025-01-14 | ET GATHERING PROCESSING LLC / BOBCAT COMPRESSOR STATION | HYDRO, Blaine, OK | Pass | State |
| 2025-01-14 | BCE MACH LLC / BIMBAT 21 16 12N 6W 1 2MHX ROSEANNADA | YUKON, Canadian, OK | Pass | State |
| 2025-01-14 | BCE MACH LLC / LONE WOLF 35 26 12N 8W 1MHX 2MHX 3MHX | EL RENO, Canadian, OK | Pass | State |
| 2025-01-14 | ET GATHERING PROCESSING LLC / OIL CITY COMPRESSOR STATION | HEALDTON, Carter, OK | Pass | State |
| 2025-01-14 | ET GATHERING PROCESSING LLC / OIL CITY COMPRESSOR STATION | HEALDTON, Carter, OK | Pass | State |
| 2025-01-14 | ET GATHERING PROCESSING LLC / OIL CITY COMPRESSOR STATION | HEALDTON, Carter, OK | Pass | State |
| 2025-01-14 | ET GATHERING PROCESSING LLC / OIL CITY COMPRESSOR STATION | HEALDTON, Carter, OK | Pass | State |
| 2025-01-14 | TOM STACK LLC / CHISHOLM PLANT | CASHION, Kingfisher, OK | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.