EPA Air · stack tests by state, industry and year
Oil and gas extraction (NAICS 2111): stack tests in Pennsylvania, 2025
- 455Stack 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 Pennsylvania 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 Pennsylvania, other years
Other industries in Pennsylvania, 2025
- Pipeline transportation (NAICS 4862) 88
- Utilities (NAICS 2211) 60
- Mining support (NAICS 2131) 41
- Waste management and remediation (NAICS 5622) 30
- Petroleum and coal products manufacturing (NAICS 3241) 19
- Nonmetallic mineral product manufacturing (NAICS 3273) 18
- Primary metal manufacturing (NAICS 3311) 16
- Primary metal manufacturing (NAICS 3312) 15
- Merchant wholesalers, nondurable goods (NAICS 4247) 15
- Utilities (NAICS 2213) 12
- Chemical manufacturing (NAICS 3251) 11
- Plastics and rubber products manufacturing (NAICS 3261) 11
- Electrical equipment and appliance manufacturing (NAICS 3359) 11
- Educational services (NAICS 6113) 9
- Paper manufacturing (NAICS 3221) 9
- Chemical manufacturing (NAICS 3252) 8
- Utilities (NAICS 2212) 6
- Primary metal manufacturing (NAICS 3314) 6
- Chemical manufacturing (NAICS 3254) 6
- Printing and related support (NAICS 3231) 6
- Nonmetallic mineral product manufacturing (NAICS 3272) 5
- Mining and quarrying (NAICS 2123) 5
- Hospitals (NAICS 6221) 5
- Food manufacturing (NAICS 3118) 4
- Nonmetallic mineral product manufacturing (NAICS 3271) 4
- Primary metal manufacturing (NAICS 3313) 4
- Merchant wholesalers, durable goods (NAICS 4233) 4
- Fabricated metal product manufacturing (NAICS 3324) 4
- Primary metal manufacturing (NAICS 3315) 4
- Mining and quarrying (NAICS 2121) 4
- Machinery manufacturing (NAICS 3339) 3
- Fabricated metal product manufacturing (NAICS 3321) 3
- Administration of environmental programs (NAICS 9241) 3
- National security and international affairs (NAICS 9281) 3
- Food manufacturing (NAICS 3112) 3
- Chemical manufacturing (NAICS 3259) 3
Air-emissions stack tests recorded in Pennsylvania, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-02-24 | BLUESTONE PIPELINE CO OF PA/HARMONY COMP STA | SUSQUEHANNA, Susquehanna, PA | Pass | State |
| 2025-02-20 | REPSOL OIL AND GAS USA/TRACT 587 SFL COMP STA | CANTON, Tioga, PA | Pass | State |
| 2025-02-19 | MARKWEST LIBERTY MIDST & RESOURCES/THREE BROTHERS COMP STA | BURGETTSTOWN, Washington, PA | Pass | State |
| 2025-02-19 | EQM GATHERING OPCO LLC/BLUE MOON COMP STA | DAISYTOWN, Washington, PA | Pass | State |
| 2025-02-19 | WILLIAMS FIELD SVC CO/MACNEW COMP STA | HOP BOTTOM, Susquehanna, PA | Pass | State |
| 2025-02-19 | NFG MIDSTREAM COVINGTON LLC/TRACT 007 COMP STA | WELLSBORO, Tioga, PA | Pass | State |
| 2025-02-18 | NFG MIDSTREAM COVINGTON LLC/COVINGTON COMP STA | COVINGTON, Tioga, PA | Pass | State |
| 2025-02-18 | PAYNE, D. PAD 1 | NEW MILFORD, Susquehanna, PA | Pass | State |
| 2025-02-18 | HAUSER, J. PAD 1 — high-priority violation on file | SPRINGVILLE, Susquehanna, PA | Pass | State |
| 2025-02-13 | WILLIAMS FIELD SVC CO LLC/GIBSON COMP STA | SOUTH GIBSON, Susquehanna, PA | Pass | State |
| 2025-02-12 | WILLIAMS FIELD SVC CO LLC/WHITE COMP STA | SPRINGVILLE, Susquehanna, PA | Pass | State |
| 2025-02-12 | WILLIAMS FIELD SVC CO LLC/WHITE COMP STA | SPRINGVILLE, Susquehanna, PA | Pass | State |
| 2025-02-11 | WILLIAMS FIELD SVC CO LLC/MILLER COMP STA | NEW MILFORD, Susquehanna, PA | Pass | State |
| 2025-02-11 | WILLIAMS FIELD SVC CO LLC/GIBSON COMP STA | SOUTH GIBSON, Susquehanna, PA | Pass | State |
| 2025-02-11 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/MCMICHAEL COMP STA | CLINTON, Beaver, PA | Pass | State |
| 2025-02-11 | COTERRA ENERGY INC/ANDERSON R PAD 1 — high-priority violation on file | MESHOPPEN, Susquehanna, PA | Pass | State |
| 2025-02-10 | INR MIDSTREAM LLC/WEST SUMMIT COMP STA | LAKE LYNN, Fayette, PA | Pass | State |
| 2025-02-10 | WILLIAMS FIELD SVC CO LLC/MILLER COMP STA | NEW MILFORD, Susquehanna, PA | Pass | State |
| 2025-02-10 | MARKWEST LIBERTY MIDSTREAM/TIMBERLAKE COMP STA | CLAYSVILLE, Washington, PA | Pass | State |
| 2025-02-07 | EQM GATHERING OPCO LLC/JUPITER COMP STA | WAYNESBURG, Greene, PA | Pass | State |
| 2025-02-04 | SWN ENERGY PROD CO/SEYMOUR PAD | LAWTON, Bradford, PA | Pass | State |
| 2025-02-04 | COTERRA ENERGY INC/LAMBERT R PAD 1 | KINGSLEY, Susquehanna, PA | Pass | State |
| 2025-02-04 | GRIFFITHS, J. PAD 1 | MONTROSE, Susquehanna, PA | Pass | State |
| 2025-02-03 | K PETROLEUM INC/HACKETT COMP STA — high-priority violation on file | BENTLEYVILLE, Washington, PA | Fail | State |
| 2025-01-29 | TEXAS EASTERN TRANS LP/TE DELMONT COMP STA | GREENSBURG, Westmoreland, PA | Pass | State |
| 2025-01-29 | HAMMERHEAD MIDSTREAM LLC/ANCHOR COMP STA | WAYNESBURG, Greene, PA | Pass | State |
| 2025-01-29 | RANGE RESOURCES APPALACHIA LLC/SGL 075A 12682 | TROUT RUN, Lycoming, PA | Pass | State |
| 2025-01-28 | ROVER PIPELINE LLC/BULGER COMP STA | BULGER, Washington, PA | Pass | State |
| 2025-01-28 | RANGE RESOURCES APPALACHIA LLC/LAUREL HILL G | TROUT RUN, Lycoming, PA | Pass | State |
| 2025-01-27 | DIVERSIFIED PROD LLC/PINE CREEK COMP STA | PINE CREEK TOWNSHIP, Jefferson, PA | Pass | State |
| 2025-01-27 | LOAN ASSET ISSUER LLC/WEST FINLEY 4 WELL PAD | WEST FINELY, Washington, PA | Pass | State |
| 2025-01-23 | APPALACHIA MIDSTREAM SVC LLC/GRANVILLE STA 2 | GRANVILLE SUMMIT, Bradford, PA | Pass | State |
| 2025-01-23 | REGENCY MARCELLUS GAS GATHERING LLC/LONE WALNUT COMP STA | JERSEY SHORE, Lycoming, PA | Pass | State |
| 2025-01-23 | ETC NORTHEAST PIPELINE LLC/RED BEND COMP STA | TROUT RUN, Lycoming, PA | Pass | State |
| 2025-01-22 | REGENCY MARCELLUS GATHERING LLC/BRADFORD WEST COMP STA | GRANVILLE SUMMIT, Bradford, PA | Pass | State |
| 2025-01-22 | WILLIAMS FIELD SVC CO LLC/CHURCH COMP STA | SPRINGVILLE, Susquehanna, PA | Pass | State |
| 2025-01-16 | APPALACHIA MIDSTREAM SVC LLC/AUBURN COMP STA | MESHOPPEN, Susquehanna, PA | Pass | State |
| 2025-01-16 | SUSQUEHANNA GATHERING/CDP 1 COMP STA | NEW MILFORD, Susquehanna, PA | Pass | State |
| 2025-01-15 | APPALACHIA MIDSTREAM SVC LLC/RATTLESNAKE HILL COMP STA | AUBURN TOWNSHIP, Susquehanna, PA | Pass | State |
| 2025-01-14 | EXCO APPALACHIA MIDSTREAM LLC/POVERTY HILL COMP STA | KITTANNING, Armstrong, PA | Pass | State |
| 2025-01-14 | CHIEF OIL & GAS TAGUE WEST COMPRESSOR | TUNKHANNOCK, Wyoming, PA | Pass | State |
| 2025-01-13 | HEP PENNSYLVANIA GATHERING LLC/TIOGA CPF#2 COMP STA | LIBERTY, Tioga, PA | Pass | State |
| 2025-01-10 | BLUESTONE PIPELINE CO/COMFORT LAKE COMP STA | HARMONY TWP, Susquehanna, PA | Pass | State |
| 2025-01-10 | WILLIAMS FIELD SVC CO LLC/GIBSON COMP STA | SOUTH GIBSON, Susquehanna, PA | Pass | State |
| 2025-01-10 | EQM GATHERING OPCO LLC/BLUE MOON COMP STA | DAISYTOWN, Washington, PA | Pass | State |
| 2025-01-09 | NFG MIDSTREAM COVINGTON LLC/MATZ COMP STA | CHATHAM, Tioga, PA | Pass | State |
| 2025-01-09 | REGENCY MARCELLUS GAS GATHERING LLC/OGONTZ WEST COMP STA | CUMMINS TWP, Lycoming, PA | Pass | State |
| 2025-01-08 | NFG MIDSTREAM COVINGTON LLC/LAWTON COMP STA | WELLSBORO, Tioga, PA | Pass | State |
| 2025-01-08 | WILLIAMS FIELD SVC CO LLC/CENTRAL COMP STA | MONTROSE, Susquehanna, PA | Pass | State |
| 2025-01-07 | NATL FUEL SUPPLY CORP/BUFFALO COMP STA | WASHINGTON, Washington, PA | Pass | State |
| 2025-01-07 | WILLIAMS FIELD SVC CO LLC/WHITE COMP STA | SPRINGVILLE, Susquehanna, PA | Pass | State |
| 2025-01-07 | EXPAND OPERATING LLC/FOLTA BRA PAD | LACEYVILLE, Bradford, PA | Pass | State |
| 2025-01-07 | EXPAND OPERATING LLC/KATHRYN BRA PAD | WYALUSING, Bradford, PA | Pass | State |
| 2025-01-06 | NATL FUEL GAS SUPPLY CORP/MERCER COMP STA | MERCER, Mercer, PA | Pass | State |
| 2025-01-02 | CNX MIDSTREAM OPR CO LLC/HOPEWELL STATION | SYCAMORE, Greene, PA | 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.