EPA Air · stack tests by state, industry and year
Oil and gas extraction (NAICS 2111): stack tests in Alaska, 2025
- 44Stack 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 Alaska 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 Alaska, other years
Other industries in Alaska, 2025
- Utilities (NAICS 2211) 38
- Educational services (NAICS 6113) 19
- Mining and quarrying (NAICS 2122) 16
- Petroleum and coal products manufacturing (NAICS 3241) 13
- National security and international affairs (NAICS 9281) 13
- Merchant wholesalers, nondurable goods (NAICS 4247) 4
Air-emissions stack tests recorded in Alaska, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-12-13 | HILCORP ALASKA, LLC / PRUDHOE SEAWATER TREATMENT PLANT | NORTH SLOPE BOROUGH, North Slope, AK | Pass | State |
| 2025-12-13 | HILCORP ALASKA, LLC / PRUDHOE SEAWATER TREATMENT PLANT | NORTH SLOPE BOROUGH, North Slope, AK | Pass | State |
| 2025-12-13 | HILCORP ALASKA, LLC / PRUDHOE SEAWATER TREATMENT PLANT | NORTH SLOPE BOROUGH, North Slope, AK | Pass | State |
| 2025-12-13 | HILCORP ALASKA, LLC / PRUDHOE SEAWATER TREATMENT PLANT | NORTH SLOPE BOROUGH, North Slope, AK | Pass | State |
| 2025-12-05 | HILCORP ALASKA, LLC / BELUGA RIVER UNIT — high-priority violation on file | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-12-05 | HILCORP ALASKA, LLC / BELUGA RIVER UNIT — high-priority violation on file | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-12-05 | HILCORP ALASKA, LLC / BELUGA RIVER UNIT — high-priority violation on file | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-12-02 | HILCORP ALASKA, LLC / TYONEK PLATFORM | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-11-18 | HILCORP ALASKA, LLC / BEAVER CREEK PRODUCTION FACILITY | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-10-21 | HILCORP ALASKA, LLC / GATHERING CENTER #2 (GC 2) | NORTH SLOPE BOROUGH, North Slope, AK | Pass | State |
| 2025-10-21 | HILCORP ALASKA, LLC / GATHERING CENTER #2 (GC 2) | NORTH SLOPE BOROUGH, North Slope, AK | Pass | State |
| 2025-10-19 | HILCORP ALASKA, LLC / MILNE POINT PRODUCTION FACILITY (MPU) | NORTH SLOPE BOROUGH, North Slope, AK | Fail | State |
| 2025-09-05 | HILCORP ALASKA, LLC / CENTRAL GAS FACILITY (CGF) — high-priority violation on file | NORTH SLOPE BOROUGH, North Slope, AK | Pass | State |
| 2025-08-20 | HILCORP ALASKA, LLC / MILNE POINT L-PAD | NORTH SLOPE BOROUGH, North Slope, AK | Pass | State |
| 2025-08-07 | HILCORP ALASKA, LLC / DOLLY VARDEN PLATFORM — high-priority violation on file | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-08-05 | HILCORP ALASKA, LLC / GRANITE POINT PLATFORM | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-06-28 | HILCORP ALASKA, LLC / BELUGA RIVER UNIT — high-priority violation on file | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-06-28 | HILCORP ALASKA, LLC / BELUGA RIVER UNIT — high-priority violation on file | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-06-28 | HILCORP ALASKA, LLC / BELUGA RIVER UNIT — high-priority violation on file | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-06-28 | HILCORP ALASKA, LLC / BELUGA RIVER UNIT — high-priority violation on file | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-06-28 | HILCORP ALASKA, LLC / BELUGA RIVER UNIT — high-priority violation on file | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-06-28 | HILCORP ALASKA, LLC / BELUGA RIVER UNIT — high-priority violation on file | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-06-28 | HILCORP ALASKA, LLC / BELUGA RIVER UNIT — high-priority violation on file | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-06-06 | HILCORP ALASKA, LLC / KENAI GAS FIELD PAD 34-31 | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-06-06 | HILCORP ALASKA, LLC / KENAI GAS FIELD PAD 34-31 | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-06-04 | HILCORP ALASKA, LLC / KENAI GAS FIELD PAD 34-31 | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-06-03 | HILCORP ALASKA, LLC / KENAI GAS FIELD PAD 14-6 | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-05-22 | HILCORP ALASKA, LLC / BEAVER CREEK PRODUCTION FACILITY | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-05-14 | HILCORP ALASKA, LLC / LISBURNE PRODUCTION CENTER (LPC) | NORTH SLOPE BOROUGH, North Slope, AK | Pass | State |
| 2025-05-14 | HILCORP ALASKA, LLC / LISBURNE PRODUCTION CENTER (LPC) | NORTH SLOPE BOROUGH, North Slope, AK | Pass | State |
| 2025-04-28 | HILCORP ALASKA, LLC / NORTHSTAR PRODUCTION FACILITY (NOR) | NORTH SLOPE BOROUGH, North Slope, AK | Pass | State |
| 2025-04-28 | HILCORP ALASKA, LLC / NORTHSTAR PRODUCTION FACILITY (NOR) | NORTH SLOPE BOROUGH, North Slope, AK | Pass | State |
| 2025-04-26 | HILCORP ALASKA, LLC / NORTHSTAR PRODUCTION FACILITY (NOR) | NORTH SLOPE BOROUGH, North Slope, AK | Pass | State |
| 2025-04-13 | HILCORP ALASKA, LLC / POINT THOMSON PRODUCTION FACILITY — high-priority violation on file | NORTH SLOPE BOROUGH, North Slope, AK | Fail | State |
| 2025-04-13 | HILCORP ALASKA, LLC / POINT THOMSON PRODUCTION FACILITY — high-priority violation on file | NORTH SLOPE BOROUGH, North Slope, AK | Fail | State |
| 2025-04-12 | HILCORP ALASKA, LLC / POINT THOMSON PRODUCTION FACILITY — high-priority violation on file | NORTH SLOPE BOROUGH, North Slope, AK | Fail | State |
| 2025-04-12 | HILCORP ALASKA, LLC / POINT THOMSON PRODUCTION FACILITY — high-priority violation on file | NORTH SLOPE BOROUGH, North Slope, AK | Fail | State |
| 2025-04-03 | HILCORP ALASKA, LLC / TYONEK PLATFORM | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-04-01 | HILCORP ALASKA, LLC / TYONEK PLATFORM | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-04-01 | HILCORP ALASKA, LLC / TYONEK PLATFORM | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-03-18 | HILCORP ALASKA, LLC / GRANITE POINT PLATFORM | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-03-12 | HILCORP ALASKA, LLC / ANNA PLATFORM | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-03-11 | HILCORP ALASKA, LLC / ANNA PLATFORM | KENAI, Kenai Peninsula, AK | Pass | State |
| 2025-03-04 | HILCORP ALASKA, LLC / NIKAITCHUQ DEVELOPMENT | NORTH SLOPE BOROUGH, North Slope, AK | 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.