EPA Air · stack tests by state, industry and year
Oil and gas extraction (NAICS 2111): stack tests in Wyoming, 2025
- 278Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row is one stack test recorded during 2025 at a Wyoming source whose primary industry code is NAICS 2111. A facility filing more than one industry code is counted under the first one on its record.
Oil and gas extraction (NAICS 2111) in Wyoming, other years
Other industries in Wyoming, 2025
- Pipeline transportation (NAICS 4862) 593
- Nonmetallic mineral product manufacturing (NAICS 3274) 109
- Mining and quarrying (NAICS 2123) 100
- Utilities (NAICS 2211) 68
- Pipeline transportation (NAICS 4869) 62
- Publishing industries (NAICS 5112) 48
- Petroleum and coal products manufacturing (NAICS 3241) 38
- Mining support (NAICS 2131) 30
- Chemical manufacturing (NAICS 3253) 17
- Nonmetallic mineral product manufacturing (NAICS 3273) 12
- Food manufacturing (NAICS 3113) 4
- Heavy and civil engineering construction (NAICS 2371) 3
Air-emissions stack tests recorded in Wyoming, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-09-22 | STEAMBOAT PROCESSING FACILITY (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2025-08-25 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-08-25 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-08-25 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-08-25 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-08-25 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-08-25 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-08-20 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-08-20 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-08-20 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-07-30 | HATCHET COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-07-30 | HATCHET COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-07-30 | HATCHET COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-07-30 | HATCHET COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-07-30 | HATCHET COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-07-30 | HATCHET COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-07-28 | HATCHET COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-07-28 | HATCHET COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-07-28 | HATCHET COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-07-28 | HATCHET COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-07-28 | HATCHET COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-07-28 | HATCHET COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-06-18 | 50 BUTTES PLANT (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-06-18 | 50 BUTTES PLANT (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-06-18 | 50 BUTTES PLANT (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-06-18 | 50 BUTTES PLANT (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-06-18 | 50 BUTTES PLANT (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-06-18 | 50 BUTTES PLANT (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-06-18 | 50 BUTTES PLANT (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-06-18 | 50 BUTTES PLANT (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-06-18 | 50 BUTTES PLANT (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-06-18 | 50 BUTTES PLANT (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-06-18 | 50 BUTTES PLANT (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-06-18 | 50 BUTTES PLANT (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-06-10 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-06-10 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-06-10 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-06-10 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-06-10 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-06-10 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-06-10 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-06-10 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-06-09 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-06-09 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-06-09 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-06-09 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-06-09 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-06-09 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-06-09 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-06-09 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-05-13 | BAGGS MAINLINE/BLUE GAP COMPRESSOR STATION (CROWHEART ENERGY, LLC) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2025-05-13 | BAGGS MAINLINE/BLUE GAP COMPRESSOR STATION (CROWHEART ENERGY, LLC) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2025-05-13 | BAGGS MAINLINE/BLUE GAP COMPRESSOR STATION (CROWHEART ENERGY, LLC) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2025-05-13 | BAGGS MAINLINE/BLUE GAP COMPRESSOR STATION (CROWHEART ENERGY, LLC) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2025-05-08 | HILIGHT GAS PLANT (WES POWDER RIVER HOLDINGS LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-05-08 | HILIGHT GAS PLANT (WES POWDER RIVER HOLDINGS LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-05-08 | HILIGHT GAS PLANT (WES POWDER RIVER HOLDINGS LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-05-08 | HILIGHT GAS PLANT (WES POWDER RIVER HOLDINGS LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-05-08 | HILIGHT GAS PLANT (WES POWDER RIVER HOLDINGS LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-05-08 | HILIGHT GAS PLANT (WES POWDER RIVER HOLDINGS LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | DOUGLAS GAS PLANT (TALLGRASS MIDSTREAM) | DOUGLAS, Converse, WY | Pass | State |
| 2025-04-10 | STEAMBOAT PROCESSING FACILITY (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2025-04-10 | STEAMBOAT PROCESSING FACILITY (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2025-04-02 | LOST CABIN GAS PLANT (CONTANGO RESOURCES, LLC.) — high-priority violation on file | LOST CABIN, Fremont, WY | Pass | State |
| 2025-04-02 | LOST CABIN GAS PLANT (CONTANGO RESOURCES, LLC.) — high-priority violation on file | LOST CABIN, Fremont, WY | Pass | State |
| 2025-04-01 | LOST CABIN GAS PLANT (CONTANGO RESOURCES, LLC.) — high-priority violation on file | LOST CABIN, Fremont, WY | Pass | State |
| 2025-04-01 | LOST CABIN GAS PLANT (CONTANGO RESOURCES, LLC.) — high-priority violation on file | LOST CABIN, Fremont, WY | Pass | State |
| 2025-04-01 | CHAIN LAKES I5 35 4H-8H PAD (CROWHEART ENERGY, LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2025-04-01 | CHAIN LAKES I5 35 4H-8H PAD (CROWHEART ENERGY, LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2025-04-01 | CHAIN LAKES I5 35 4H-8H PAD (CROWHEART ENERGY, LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2025-03-31 | LOST CABIN GAS PLANT (CONTANGO RESOURCES, LLC.) — high-priority violation on file | LOST CABIN, Fremont, WY | Pass | State |
| 2025-03-27 | LOST CABIN GAS PLANT (CONTANGO RESOURCES, LLC.) — high-priority violation on file | LOST CABIN, Fremont, WY | Pass | State |
| 2025-03-13 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-03-13 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-03-13 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-03-13 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2025-03-13 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.