EPA Air · stack tests by state, industry and year
Oil and gas extraction (NAICS 2111): stack tests in Colorado, 2025
- 286Stack 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 Colorado 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 Colorado, other years
Other industries in Colorado, 2025
- Utilities (NAICS 2211) 34
- Pipeline transportation (NAICS 4862) 17
- Nonmetallic mineral product manufacturing (NAICS 3273) 13
- Waste management and remediation (NAICS 5622) 10
- Fabricated metal product manufacturing (NAICS 3324) 9
- Petroleum and coal products manufacturing (NAICS 3241) 5
- Nonmetallic mineral product manufacturing (NAICS 3272) 5
- Merchant wholesalers, nondurable goods (NAICS 4247) 4
- Food manufacturing (NAICS 3115) 4
- Mining and quarrying (NAICS 2123) 3
- Beverage and tobacco manufacturing (NAICS 3121) 3
Air-emissions stack tests recorded in Colorado, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-12-31 | PDC ENERGY INC - CALIFORNIA 14 SEC HZ | EATON AREA, Weld, CO | Pass | State |
| 2025-12-30 | PDC ENERGY, INC. - STOUT 18 SEC HZ | SEVERANCE AREA, Weld, CO | Pass | State |
| 2025-12-23 | NOBLE ENERGY - LD22-A ECONODE T9N-R58W-S | RAYMER 8.0 MI. N OF, Weld, CO | Pass | State |
| 2025-12-23 | PDC ENERGY - MARKET FEDERAL 18 SEC HZ | AULT AREA, Weld, CO | Pass | State |
| 2025-12-18 | REP PROCESSING - SEVERANCE COMP STATION | AULT AREA, Weld, CO | Pass | State |
| 2025-12-17 | DCP OPERATING CO - O'CONNOR GAS PLANT | KERSEY AREA, Weld, CO | Pass | State |
| 2025-12-17 | DCP OPERATING CO - O'CONNOR GAS PLANT | KERSEY AREA, Weld, CO | Pass | State |
| 2025-12-17 | BONANZA CRK ENERGY - NORTH PLATTE 24-34 | KERSEY 6.1 MI. N OF, Weld, CO | N/A | State |
| 2025-12-17 | BONANZA CRK ENERGY - NORTH PLATTE 24-34 | KERSEY 6.1 MI. N OF, Weld, CO | Pass | State |
| 2025-12-17 | REP PROCESSING - SEVERANCE COMP STATION | AULT AREA, Weld, CO | Pass | State |
| 2025-12-17 | REP PROCESSING - SEVERANCE COMP STATION | AULT AREA, Weld, CO | Pass | State |
| 2025-12-16 | HIGHPOINT - ANSCHUTZ EQUUS FARMS 4-62-28 | ORCHARD 11.6 MI. N OF, Weld, CO | Pass | State |
| 2025-12-16 | REP PROCESSING - SEVERANCE COMP STATION | AULT AREA, Weld, CO | Pass | State |
| 2025-12-16 | REP PROCESSING - SEVERANCE COMP STATION | AULT AREA, Weld, CO | Pass | State |
| 2025-12-15 | REP PROCESSING - SEVERANCE COMP STATION | AULT AREA, Weld, CO | Pass | State |
| 2025-12-15 | REP PROCESSING - SEVERANCE COMP STATION | AULT AREA, Weld, CO | Pass | State |
| 2025-12-10 | QB ENERGY OPERATING - K24 496 | PARACHUTE 15.5 MI. N OF, Garfield, CO | Pending | State |
| 2025-12-10 | DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file | GREELEY AREA, Weld, CO | N/A | State |
| 2025-12-10 | DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file | GREELEY AREA, Weld, CO | N/A | State |
| 2025-12-01 | BONANZA CREEK - STATE PRONGHORN CPF 41-3 | WIGGINS 11.6 MI. NW OF, Weld, CO | Fail | State |
| 2025-11-26 | DCP OPERATING CO - ROGGEN NGPP — high-priority violation on file | KEENESBURG 4.4 MI. E OF, Weld, CO | Pass | State |
| 2025-11-25 | WES DJ GAS PROC - WATTENBERG PLANT | AURORA, Adams, CO | N/A | State |
| 2025-11-20 | WILLIAMS FIELD - WILLOW CREEK GAS PLANT — high-priority violation on file | RIO BLANCO 18 MILES W OF, Rio Blanco, CO | Pass | State |
| 2025-11-19 | WILLIAMS FIELD - WILLOW CREEK GAS PLANT — high-priority violation on file | RIO BLANCO 18 MILES W OF, Rio Blanco, CO | Pass | State |
| 2025-11-19 | WILLIAMS FIELD - WILLOW CREEK GAS PLANT — high-priority violation on file | RIO BLANCO 18 MILES W OF, Rio Blanco, CO | Pass | State |
| 2025-11-17 | HIGHPOINT - ANSCHUTZ EQUUS FARMS 4-62-15 | KERSEY 12.6 MI. E OF, Weld, CO | Pass | State |
| 2025-11-13 | BONANZA CREEK ENERGY- NORTH PLATTE 14-36 | KERSEY, Weld, CO | Fail | State |
| 2025-11-13 | BONANZA CREEK ENERGY- NORTH PLATTE 14-36 | KERSEY, Weld, CO | Fail | State |
| 2025-11-12 | CRESTONE PEAK - RESERVE 3-65 35-34 | AURORA, Adams, CO | Fail | State |
| 2025-11-12 | CRESTONE PEAK - RESERVE 3-65 35-34 | AURORA, Adams, CO | Fail | State |
| 2025-11-11 | CRESTONE PEAK - GRANDE 4-65 20-19 NORTH | AURORA, Arapahoe, CO | Pass | State |
| 2025-11-11 | CRESTONE PEAK - GRANDE 4-65 20-19 NORTH | AURORA, Arapahoe, CO | Pass | State |
| 2025-11-11 | WES DJ GATHERING - FREDERICK CS — high-priority violation on file | DACONO AREA, Weld, CO | Pass | State |
| 2025-11-10 | MID-AMERICA PIPELINE CO DOVE CR STA | DOVE CREEK 5.3 MI. NW OF, Dolores, CO | Pass | State |
| 2025-11-06 | LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file | PARACHUTE 10.1 MI. W OF, Garfield, CO | Pass | State |
| 2025-11-05 | LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file | PARACHUTE 10.1 MI. W OF, Garfield, CO | Pass | State |
| 2025-11-05 | HIGHPOINT - ANSCHUTZ EQUUS FARMS 4-62-28 | ORCHARD 11.6 MI. N OF, Weld, CO | Pass | State |
| 2025-11-04 | LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file | PARACHUTE 10.1 MI. W OF, Garfield, CO | Pass | State |
| 2025-11-03 | ROCKIES EXPRESS PIPELINE LLC - MEEKER | MEEKER 21.0 MI. N OF, Rio Blanco, CO | Pass | State |
| 2025-11-03 | ROCKIES EXPRESS PIPELINE LLC - MEEKER | MEEKER 21.0 MI. N OF, Rio Blanco, CO | Pass | State |
| 2025-10-31 | LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file | PARACHUTE 10.1 MI. W OF, Garfield, CO | Pass | State |
| 2025-10-30 | LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file | PARACHUTE 10.1 MI. W OF, Garfield, CO | Pass | State |
| 2025-10-30 | LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file | PARACHUTE 10.1 MI. W OF, Garfield, CO | Pass | State |
| 2025-10-30 | LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file | PARACHUTE 10.1 MI. W OF, Garfield, CO | Pass | State |
| 2025-10-30 | UTAH GAS - WEST DRAGON TRAIL C.S. | RANGELY 15.4 MI. S OF, Rio Blanco, CO | Pending | State |
| 2025-10-30 | HIGHPOINT - ANSCHUTZ EQUUS FARMS 4-62-28 | ORCHARD 11.6 MI. N OF, Weld, CO | Pass | State |
| 2025-10-30 | HIGHPOINT - ANSCHUTZ EQUUS FARMS 4-62-28 | ORCHARD 11.6 MI. N OF, Weld, CO | Pass | State |
| 2025-10-30 | HIGHPOINT - ANSCHUTZ EQUUS FARMS 4-62-28 | ORCHARD 11.6 MI. N OF, Weld, CO | Pass | State |
| 2025-10-30 | HIGHPOINT - ANSCHUTZ EQUUS FARMS 4-62-28 | ORCHARD 11.6 MI. N OF, Weld, CO | Pass | State |
| 2025-10-29 | LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file | PARACHUTE 10.1 MI. W OF, Garfield, CO | Pass | State |
| 2025-10-29 | UTAH GAS - DRAGON TRAIL — high-priority violation on file | RANGELY 16.7 MI. S OF, Rio Blanco, CO | Pass | State |
| 2025-10-29 | BONANZA CREEK - STATE ANTELOPE CPF O-1 | KERSEY 14.0 MI. E OF, Weld, CO | Fail | State |
| 2025-10-28 | LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file | PARACHUTE 10.1 MI. W OF, Garfield, CO | Pass | State |
| 2025-10-28 | LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file | PARACHUTE 10.1 MI. W OF, Garfield, CO | Pass | State |
| 2025-10-23 | SEELEY OIL CO - CUTTHROAT BATTERY B | MONTEZUMA COUNTY, Montezuma, CO | Pass | State |
| 2025-10-23 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | FORT LUPTON, Weld, CO | Pass | State |
| 2025-10-22 | WES DJ GATHERING - FREDERICK CS — high-priority violation on file | DACONO AREA, Weld, CO | Pass | State |
| 2025-10-21 | DCP OPERATING CO - LIBSACK C.S. | GREELEY AREA, Weld, CO | Pass | State |
| 2025-10-20 | DCP OPERATING CO - LIBSACK C.S. | GREELEY AREA, Weld, CO | N/A | State |
| 2025-10-14 | PDC ENERGY - ORR STATE 40-36 PAD | GREELEY AREA, Weld, CO | Pass | State |
| 2025-10-14 | NOBLE ENERGY - NCLP PC AA04 AA06 ECONODE | GILL AREA, Weld, CO | Pass | State |
| 2025-10-10 | SUMMIT DJ-O OPERATING - KOKI — high-priority violation on file | JACKSON LAKE, Weld, CO | Pass | State |
| 2025-10-09 | DCP OPERATING CO - ROGGEN NGPP — high-priority violation on file | KEENESBURG 4.4 MI. E OF, Weld, CO | Fail | State |
| 2025-10-09 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | FORT LUPTON, Weld, CO | Pass | State |
| 2025-10-09 | DCP OPERATING CO - ENTERPRISE C.S. — high-priority violation on file | KEENESBURG 5.2 MI. N OF, Weld, CO | Pass | State |
| 2025-10-09 | EXTRACTION - WAKE EAST 32N PROD FACILITY | GREELEY AREA, Weld, CO | Pass | State |
| 2025-10-08 | DCP OPERATING CO - ENTERPRISE C.S. — high-priority violation on file | KEENESBURG 5.2 MI. N OF, Weld, CO | Pending | State |
| 2025-10-08 | DCP OPERATING CO - ENTERPRISE C.S. — high-priority violation on file | KEENESBURG 5.2 MI. N OF, Weld, CO | Pass | State |
| 2025-10-06 | EXTRACTION - WAKE EAST 32N PROD FACILITY | GREELEY AREA, Weld, CO | Pass | State |
| 2025-10-06 | EXTRACTION - WAKE EAST 32N PROD FACILITY | GREELEY AREA, Weld, CO | Pass | State |
| 2025-10-03 | WES DJ GATHERING - FREDERICK CS — high-priority violation on file | DACONO AREA, Weld, CO | Pass | State |
| 2025-10-01 | UTAH GAS - DRAGON TRAIL 1121 | RANGELY 17.1 MI. S OF, Rio Blanco, CO | Pass | State |
| 2025-09-29 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | FORT LUPTON, Weld, CO | Pass | State |
| 2025-09-28 | ROCKY MT MIDSTREAM- KEENESBURG GAS PLANT | KEENESBURG, Weld, CO | Pass | State |
| 2025-09-25 | ROCKY MOUNTAIN MIDSTREAM - WATKINS C.S. | BENNETT AREA, Adams, CO | Pass | State |
| 2025-09-25 | ROCKY MOUNTAIN MIDSTREAM - WATKINS C.S. | BENNETT AREA, Adams, CO | Pass | State |
| 2025-09-25 | PRAIRIE OPERATING CO - HESTER FARMS II | SEVERANCE AREA, Weld, CO | Pass | State |
| 2025-09-24 | HIGHPOINT - PAPPENHEIM 6-62-23 | KERSEY 14.2 MI. NE OF, Weld, CO | Pass | State |
| 2025-09-24 | PDC ENERGY - POSTLE IC WEST | MEAD AREA, Weld, CO | Pass | State |
| 2025-09-18 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | FORT LUPTON, Weld, CO | Pass | State |
| 2025-09-10 | CHEYENNE PLAINS GAS- KIRK COMP STAT | KIRK AREA, Yuma, CO | Pass | State |
| 2025-09-09 | COLORADO INTERSTATE GAS- KIT CARSON C.S. | KIT CARSON 6.6 MI. S OF, Cheyenne, CO | Pass | State |
| 2025-09-09 | COLORADO INTERSTATE GAS- KIT CARSON C.S. | KIT CARSON 6.6 MI. S OF, Cheyenne, CO | Pass | State |
| 2025-09-08 | DCP OPERATING CO - CROSSROADS FACILITY | KERSEY 5.0 MI. N OF, Weld, CO | Pass | State |
| 2025-09-08 | DCP OPERATING CO - CROSSROADS FACILITY | KERSEY 5.0 MI. N OF, Weld, CO | Pass | State |
| 2025-09-03 | BONANZA CREEK ENERGY - ANTELOPE SECTION | KERSEY 9.2 MI. E OF, Weld, CO | Pending | State |
| 2025-09-03 | BONANZA CREEK ENERGY - ANTELOPE SECTION | KERSEY 9.2 MI. E OF, Weld, CO | Pending | State |
| 2025-09-03 | PDC ENERGY - WIEDEMAN/BOOMERANG PAD — high-priority violation on file | GREELEY AREA, Weld, CO | Pass | State |
| 2025-08-28 | BONANZA CREEK - ANTELOPE CPF 13-21 | KERSEY 10.4 MI. E OF, Weld, CO | N/A | State |
| 2025-08-27 | CRESTONE PEAK - CROW 3-64 29-30 | AURORA, Adams, CO | Pass | State |
| 2025-08-27 | TEP ROCKY MTN - WEBSTER CS | RIFLE 2.0 MI. W OF, Garfield, CO | Pass | State |
| 2025-08-26 | BONANZA CRK STATE NORTH PLATTE CPF 42-26 | KERSEY 7.1 MI. N OF, Weld, CO | Pass | State |
| 2025-08-25 | BONANZA CREEK - STATE NORTH PLATTE T-36 | KERSEY 8.3 MI. E OF, Weld, CO | Pass | State |
| 2025-08-25 | BONANZA CREEK - STATE NORTH PLATTE T-36 | KERSEY 8.3 MI. E OF, Weld, CO | Pass | State |
| 2025-08-25 | BONANZA CREEK - STATE NORTH PLATTE T-36 | KERSEY 8.3 MI. E OF, Weld, CO | Pass | State |
| 2025-08-22 | ENTERPRISE PRODUCTS OP- JACKRABBIT CS | PARACHUTE 9.5 MI. NW OF, Garfield, CO | Pass | State |
| 2025-08-22 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | FORT LUPTON, Weld, CO | N/A | State |
| 2025-08-22 | DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file | GREELEY AREA, Weld, CO | Pass | State |
| 2025-08-21 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | FORT LUPTON, Weld, CO | N/A | State |
| 2025-08-20 | BARGATH LLC - PARACHUTE CREEK GAS PLANT | PARACHUTE 2.9 MI. NW OF, Garfield, CO | Pass | State |
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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.