EPA Air · stack tests by county and year
Air-emissions stack tests in Hughes County, Oklahoma, 2025
- 37Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Hughes County, Oklahoma during 2025. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Hughes County facility page.
Air-emissions stack tests in Hughes County, other years
Air-emissions stack tests recorded in Hughes County, Oklahoma, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-09-05 | CALYX ENERGY III LLC / CARVER PAD | Pass | State |
| 2025-09-03 | CALYX ENERGY III LLC / WASHINGTON PAD | Pass | State |
| 2025-09-03 | CALYX ENERGY III LLC / MADISON PAD | Pass | State |
| 2025-09-02 | CALYX ENERGY III LLC / MAVERICK PAD | Pass | State |
| 2025-08-19 | MARKWEST OKLAHOMA GAS CO LLC / STUART NORTH COMPRESSOR STATION | Pass | State |
| 2025-08-19 | MARKWEST OKLAHOMA GAS CO LLC / MOSS COMPRESSOR STATION | Pass | State |
| 2025-08-18 | MARKWEST OKLAHOMA GAS CO LLC / MOSS COMPRESSOR STATION | Pass | State |
| 2025-08-18 | MARKWEST OKLAHOMA GAS CO LLC / MOSS COMPRESSOR STATION | Pass | State |
| 2025-07-14 | MARKWEST OKLAHOMA GAS CO LLC / MOSS COMPRESSOR STATION | Pass | State |
| 2025-07-14 | MARKWEST OKLAHOMA GAS CO LLC / MOSS COMPRESSOR STATION | Pass | State |
| 2025-07-03 | MARKWEST OKLAHOMA GAS CO LLC / LAMAR COMPRESSOR STATION | Pass | State |
| 2025-07-01 | VM ARKOMA STACK LLC / HELL CAT COMPRESSOR STATION | Pass | State |
| 2025-06-30 | TALL OAK WOODFORD LLC / BARGER COMPRESSOR STATION | Pass | State |
| 2025-06-30 | TALL OAK WOODFORD LLC / ROUGHTAIL COMPRESSOR FACILITY | Pass | State |
| 2025-06-30 | TALL OAK WOODFORD LLC / FOUNDERS COMPRESSOR FACILITY | Pass | State |
| 2025-06-12 | TALL OAK WOODFORD LLC / ROUGHTAIL COMPRESSOR FACILITY | Pass | State |
| 2025-06-12 | VM ARKOMA STACK LLC / MERIDIAN COMPRESSOR STATION | Pass | State |
| 2025-06-11 | MARKWEST OKLAHOMA GAS CO LLC / LAMAR COMPRESSOR STATION | Pass | State |
| 2025-06-10 | MARKWEST OKLAHOMA GAS CO LLC / LAMAR COMPRESSOR STATION | Pass | State |
| 2025-06-10 | MARKWEST OKLAHOMA GAS CO LLC / LAMAR COMPRESSOR STATION | Pass | State |
| 2025-06-09 | MARKWEST OKLAHOMA GAS CO LLC / LAMAR COMPRESSOR STATION | Pass | State |
| 2025-06-09 | MARKWEST OKLAHOMA GAS CO LLC / LAMAR COMPRESSOR STATION | Pass | State |
| 2025-05-29 | MARKWEST OKLAHOMA GAS CO LLC / WEST RELAY COMPESSOR STATION | Pass | State |
| 2025-05-28 | CALYX ENERGY III LLC / KENNEDY PAD | Pass | State |
| 2025-05-28 | CALYX ENERGY III LLC / JASMINE PAD | Pass | State |
| 2025-05-15 | MARKWEST OKLAHOMA GAS CO LLC / STUART NORTH COMPRESSOR STATION | Pass | State |
| 2025-05-15 | MARKWEST OKLAHOMA GAS CO LLC / STUART NORTH COMPRESSOR STATION | Pass | State |
| 2025-05-14 | FOUNDATION ENERGY MANAGEMENT LLC / WILSON 2 14H | Pass | State |
| 2025-04-07 | VM ARKOMA STACK LLC / RIVERVIEW COMPRESSOR STATION | Pass | State |
| 2025-04-03 | FOUNDATION ENERGY MANAGEMENT LLC / NORTHRIDGE GAS PLANT | Pass | State |
| 2025-03-24 | TALL OAK WOODFORD LLC / ROUGHTAIL COMPRESSOR FACILITY | Pass | State |
| 2025-03-24 | TALL OAK WOODFORD LLC / ROUGHTAIL COMPRESSOR FACILITY | Pass | State |
| 2025-03-24 | TALL OAK WOODFORD LLC / ROUGHTAIL COMPRESSOR FACILITY | Pass | State |
| 2025-03-24 | TALL OAK WOODFORD LLC / ROUGHTAIL COMPRESSOR FACILITY | Pass | State |
| 2025-02-26 | FOUNDATION ENERGY MANAGEMENT LLC / NORTHRIDGE GAS PLANT | Pass | State |
| 2025-02-26 | MARKWEST OKLAHOMA GAS CO LLC / DUNN COMPRESSOR STATION | Pass | State |
| 2025-01-07 | ENABLE GAS TRANSMISSION LLC / ALLEN COMPRESSOR STATION | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.