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 |
|---|---|---|---|---|
| 2025-04-30 | COTERRA ENERGY INC/BURKE G PAD 1 | MESHOPPEN, Susquehanna, PA | Pass | State |
| 2025-04-30 | WILLIAMS, D. PAD 1 | KINGSLEY, Susquehanna, PA | Pass | State |
| 2025-04-29 | MARKWEST LIBERTY MIDSTREAM/ CARPENTER COMP STA | WEST ALEXANDRIA, Washington, PA | Pass | State |
| 2025-04-29 | EXPAND OPERATING LLC/TIFFANY WYO PAD | LACEYVILLE, Wyoming, PA | Pass | State |
| 2025-04-29 | COTERRA ENERGY INC/CARPENETTI R PAD 1 | NICHOLSON, Susquehanna, PA | Pass | State |
| 2025-04-29 | COTERRA ENERGY INC/MYERS R PAD 1 | HOP BOTTOM, Susquehanna, PA | Pass | State |
| 2025-04-29 | HOWELL, G. PAD 1 | MESHOPPEN, Susquehanna, PA | Pass | State |
| 2025-04-29 | BUSIK, J. PAD 1 | MONTROSE, Susquehanna, PA | Pass | State |
| 2025-04-29 | DOBROSIELSKI, S PAD 1 | MESHOPPEN, Susquehanna, PA | Pass | State |
| 2025-04-28 | ABBOTT, M. PAD 1 | NEW MILFORD, Susquehanna, PA | Pass | State |
| 2025-04-24 | WILLIAMS FIELD SVC CO LLC/ZICK COMP STA | KINGSLEY, Susquehanna, PA | Pass | State |
| 2025-04-23 | LAUREL MTN MIDSTREAM OPR LLC/BROWN COMP STA | GREENSBORO, Greene, PA | Pass | State |
| 2025-04-23 | EQM GATHERING OPCO LLC/TWILIGHT COMP STA | DAISYTOWN, Washington, PA | Pass | State |
| 2025-04-23 | WILLIAMS FIELD SVC CO LLC/CENTRAL COMP STA | MONTROSE, Susquehanna, PA | Pass | State |
| 2025-04-23 | WILLIAMS FIELD SVC CO LLC/CENTRAL COMP STA | MONTROSE, Susquehanna, PA | Pass | State |
| 2025-04-22 | P&G 2 WELL SITE | TUNKHANNOCK, Wyoming, PA | Pass | State |
| 2025-04-21 | EQM GATHERING OPCO LLC/CALLISTO COMP STA | SYCAMORE, Greene, PA | Pass | State |
| 2025-04-21 | EXPAND OPER LLC/ROLAND BRA PAD | WILMONT, Bradford, PA | Pass | State |
| 2025-04-17 | WILLIAMS FIELD SVC CO LLC/NORTHEAST COMP STA | HALLSTEAD, Susquehanna, PA | Pass | State |
| 2025-04-16 | ETC NORTHEAST PIPELINE LLC/BARTO COMP STA | HUGHESVILLE, Lycoming, PA | Pass | State |
| 2025-04-16 | NFG MIDSTREAM COVINGTON LLC/STOCK 144 COMP STA | WELLSBORO, Tioga, PA | Pending | State |
| 2025-04-16 | EXPAND OPERATING LLC/CURTIN WYO PAD | LACEYVILLE, Wyoming, PA | Pass | State |
| 2025-04-15 | ETC NORTHEAST PIPELINE LLC/BARTO COMP STA | HUGHESVILLE, Lycoming, PA | Pass | State |
| 2025-04-15 | NFG MIDSTREAM COVINGTON LLC/NETTERMAN COMP STA | WELLSBORO, Tioga, PA | Pending | State |
| 2025-04-15 | EQM GATHERING OPCO LLC/TERRA COMP STA | PLUM CREEK, Armstrong, PA | Pass | State |
| 2025-04-14 | NFG MIDSTREAM COVINGTON LLC/MATZ COMP STA | CHATHAM, Tioga, PA | Pass | State |
| 2025-04-14 | WARREN EP INC/REIMILLER PAD | MESHOPPEN, Wyoming, PA | Pass | State |
| 2025-04-14 | EXPAND OPERATING LLC/CERCA BRA PAD | WYALUSING, Bradford, PA | Pass | State |
| 2025-04-10 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/SHAW COMP STA | WASHINGTON, Washington, PA | Pass | State |
| 2025-04-10 | SWN PROD CO/CARRAR COMP STA | MONTROSE, Susquehanna, PA | Pass | State |
| 2025-04-10 | CNX MIDSTREAM OPR CO LLC/BUCKLAND COMP STA | WIND RIDGE, Greene, PA | Pass | State |
| 2025-04-09 | PIN OAK MIDSTREAM LLC/HURTT COMP STA | NEW WILMINGTON, Mercer, PA | Fail | State |
| 2025-04-09 | NFG MIDSTREAM CLERMONT LLC/CLERMONT WEST COMP STA | EMPORIUM, Elk, PA | Pass | State |
| 2025-04-07 | CNX MIDSTREAM OPR CO LLC/MAMONT COMP STA | APOLLO, Westmoreland, PA | Pass | State |
| 2025-04-04 | WILLIAMS FIELD SVC CO LLC/FRASER COMP STA | MONTROSE, Susquehanna, PA | Pass | State |
| 2025-04-04 | ETC NORTHEAST FIELD SVC LLC/FREEDOM COMP STA | FREEDOM, Beaver, PA | Pass | State |
| 2025-04-03 | WILLIAMS FIELD SVC CO LLC/SHIELDS COMP STA | SPRINGVILLE, Susquehanna, PA | Pass | State |
| 2025-04-02 | WILLIAMS FIELD SVC CO LLC/WILCOX COMP STA | TUNKHANNOCK, Wyoming, PA | Pass | State |
| 2025-04-02 | NFG MIDSTREAM CLERMONT LLC/RICH VALLEY COMP STA | EMPORIUM, Cameron, PA | Pass | State |
| 2025-04-01 | LAUREL MTN MIDSTREAM OPR LLC/DUNBAR COMP STA | DUNBAR, Fayette, PA | Pass | State |
| 2025-04-01 | WILLIAMS FIELD SVC CO LLC/TEEL COMP STA | SPRINGVILLE, Susquehanna, PA | Pass | State |
| 2025-04-01 | MARKWEST LIBERTY MIDSTREAM/BRIGICH COMP STA | CANONSBURG, Washington, PA | Pass | State |
| 2025-03-28 | MARKWEST LIBERTY MIDSTREAM/SMITH COMP STA | BURGETTSTOWN, Washington, PA | Pass | State |
| 2025-03-27 | WILLIAMS FIELD SVC CO LLC/ZICK COMP STA | KINGSLEY, Susquehanna, PA | Pass | State |
| 2025-03-27 | JKLM ENERGY LLC/REESE HOLLOW 117 WELL PAD | COUDERSPORT, Potter, PA | Pass | State |
| 2025-03-27 | JKLM ENERGY LLC/REESE HOLLOW 117 WELL PAD | COUDERSPORT, Potter, PA | Pass | State |
| 2025-03-26 | LAUREL MTN MIDSTREAM OPR LLC/CANTARAL COMP STA | WAYNESBURG, Greene, PA | Pass | State |
| 2025-03-26 | JKLM ENERGY LLC/SWEDEN VALLEY 101 PAD | COUDERSPORT, Potter, PA | Pass | State |
| 2025-03-26 | JKLM ENERGY/SWEDEN VALLEY 105 WELL PAD | COUDERSPORT, Potter, PA | Pass | State |
| 2025-03-25 | MARKWEST LIBERTY MIDSTREAM/BAKER COMP STA | WASHINGTON, Washington, PA | Pass | State |
| 2025-03-25 | APPALACHIA MIDSTREAM SVC LLC/WILMOT COMP STA | WYALUSING, Bradford, PA | Pass | State |
| 2025-03-25 | UGI STORAGE CO/PALMER COMP STA | LAWRENCEVILLE, Tioga, PA | Pass | State |
| 2025-03-25 | EXPAND OPERATING LLC/ALVAREZ BRA WELL PAD | LACEYVILLE, Bradford, PA | Pass | State |
| 2025-03-24 | REGENCY MARCELLUS GAS GATHERING LLC/TEEL COMP STA | SPRINGVILLE, Susquehanna, PA | Pass | State |
| 2025-03-24 | APPALACHIA MIDSTREAM SVC LLC/CHERRY COMP STA | DUSHORE, Sullivan, PA | Pass | State |
| 2025-03-20 | EXPAND OPERATING LLC/WR-63 KNOSKY WELL PAD | MONTROSE, Susquehanna, PA | Pass | State |
| 2025-03-19 | NFG MIDSTREAM COVINGTON LLC/KRAUSE COMP STA | MAINESBURG, Tioga, PA | Pass | State |
| 2025-03-18 | LPR MIDSTREAM PARTNERS LLC/PMG ALLEN STA | ADDISON, Somerset, PA | Pass | State |
| 2025-03-18 | NFG MIDSTREAM TROUT RUN LLC/BODINE COMP STA | TROUT RUN, Lycoming, PA | Pass | State |
| 2025-03-17 | DIVERSIFIED PROD LLC/BELL POINT COMP STA | APOLLO, Westmoreland, PA | Pass | State |
| 2025-03-17 | DIVERSIFIED PROD LLC/BROOKVILLE SOUTH COMP STA | BROOKVILLE, Jefferson, PA | Pass | State |
| 2025-03-14 | REPSOL OIL & GAS LLC/COLE COMP STA | TROY, Bradford, PA | Pass | State |
| 2025-03-14 | EXPAND OPERATING LLC/SCOTT WELLPAD | NEW MILFORD, Susquehanna, PA | Pass | State |
| 2025-03-13 | EQT ARO LLC/COP TRACT 685 COMP STA — high-priority violation on file | JERSEY SHORE, Lycoming, PA | Pass | State |
| 2025-03-13 | REGENCY MARCELLUS GAS GATHERING LLC/TAYLOR COMP STA | CANTON, Bradford, PA | Pass | State |
| 2025-03-13 | EXPAND OPERATING LLC/MARCUCCI JONES PAD | STEVENSVILLE, Bradford, PA | Pass | State |
| 2025-03-12 | EQT ARO LLC/TRACT 285 COMP STA | NORTH BEND, Clinton, PA | Pass | State |
| 2025-03-12 | REGENCY MARCELLUS GAS GATHERING LLC/QUAKER STATE RD COMP STA | MONTOURSVILLE, Lycoming, PA | Pass | State |
| 2025-03-11 | SENECA RESOURCES CO LLC/BOONE MOUNTAIN COMP STA | BROOKVILLE, Elk, PA | Pass | State |
| 2025-03-10 | EQT ARO LLC/TRACT 289 COMP STA — high-priority violation on file | JERSEY SHORE, Lycoming, PA | Pass | State |
| 2025-03-10 | EXPAND OPERATING LLC/LU-06 FLICKS RUN EAST WELL PAD | TROUT RUN, Lycoming, PA | Pass | State |
| 2025-03-10 | GREYLOCK PROD LLC/WILDCAT WELL PAD | MT MORRIS, Greene, PA | Pass | State |
| 2025-03-06 | REPSOL OIL & GAS USA LLC/EDSELL COMP STA | LE RAYSVILLE, Bradford, PA | Pass | State |
| 2025-03-06 | EQT ARO LLC/VARGO COMP STA — high-priority violation on file | TROUT RUN, Lycoming, PA | Pass | State |
| 2025-03-06 | EXPAND OPERATING LLC/BLYE WELL PAD | MONTROSE, Susquehanna, PA | Pass | State |
| 2025-03-05 | LAUREL MTN MIDSTREAM OPR LLC/PRAH COMP STA | MCCLELLANDTOWN, Fayette, PA | Pass | State |
| 2025-03-05 | MARKWEST LIBERTY BLUESTONE LLC/VOLL COMP STA | EVANS CITY, Butler, PA | Pass | State |
| 2025-03-05 | EXPAND OPER LLC/TI-46-BLISS WELL PAD | LIBERTY, Tioga, PA | Pass | State |
| 2025-03-04 | EQT ARO LLC/LARRYS CREEK COMP STA | JERSEY SHORE, Lycoming, PA | Pass | State |
| 2025-03-04 | REPSOL OIL& GAS USA LLC/REPINE COMP STA | LITTLE MEADOWS, Susquehanna, PA | Pass | State |
| 2025-03-04 | HAMMERHEAD MIDSTREAM LLC/ANCHOR COMP STA | WAYNESBURG, Greene, PA | Pass | State |
| 2025-03-04 | EXPAND OPERATING LLC/JES BRA WELL PAD | WILMONT, Bradford, PA | Pass | State |
| 2025-03-04 | TRANSCONTINENTAL GAS PIPELINE CO LLC/ COMP STA 620 | HEGINS TOWNSHIP, Schuylkill, PA | Pass | State |
| 2025-03-04 | BOLLES SOUTH WELLPAD — high-priority violation on file | NEW MILFORD, Susquehanna, PA | Pass | State |
| 2025-03-04 | EXPAND OPERATING LLC/TI-09-BROWN WELL PAD | LIBERTY, Lycoming, PA | Pass | State |
| 2025-03-04 | EXPAND OPERATING LLC/TI-07 CUPPER WELL PAD | LIBERTY, Tioga, PA | Pass | State |
| 2025-03-03 | BLUESTONE PIPELINE CO/COMFORT LAKE COMP STA | HARMONY TWP, Susquehanna, PA | Pass | State |
| 2025-03-03 | EQT ARO LLC/ELBOW PAD B COMP STA — high-priority violation on file | COGAN HOUSE, Lycoming, PA | Pass | State |
| 2025-03-03 | LIPPINCOTT, F. PAD 1 — high-priority violation on file | KINGSLEY, Susquehanna, PA | Pass | State |
| 2025-02-28 | REPSOL OIL & GAS USA LLC/THOMAS COMP STA | TROY, Bradford, PA | Pass | State |
| 2025-02-28 | APPALACHIA MIDSTREAM SVC LLC/STAGECOACH COMP STA | WYALUSING, Bradford, PA | Pass | State |
| 2025-02-28 | CNX MIDSTREAM OPR CO LLC/RHL 22 DEHYDRATION STA | WIND RIDGE, Greene, PA | Pass | State |
| 2025-02-27 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/LOWRY COMP STA | AVELLA, Washington, PA | Pass | State |
| 2025-02-27 | REPSOL OIL & GAS USA LLC/PUTNAM COMP STA | TROY, Bradford, PA | Pass | State |
| 2025-02-26 | MARKWEST LIBERTY MIDSTREAM/WELLING COMP STA | CLAYSVILLE, Washington, PA | Pass | State |
| 2025-02-26 | APPALACHIA MIDSTREAM SVC LLC/WILMOT COMP STA | WYALUSING, Bradford, PA | Pass | State |
| 2025-02-26 | EQT ARO LLC/LYCOMING H&FC COMP STA — high-priority violation on file | TROUT RUN, Lycoming, PA | Pass | State |
| 2025-02-26 | EXPAND OPERATING LLC/MASSO SUS PAD | MESHOPPEN, Susquehanna, PA | Pass | State |
| 2025-02-25 | REPSOL OIL & GAS USA LLC/DCNR 010 COMP STA | MORRIS RUN, Tioga, PA | Pass | State |
| 2025-02-25 | EXPAND OPERATING LLC/MCGAVIN WELL PAD | MESHOPPEN, Susquehanna, PA | 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.