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EPA Air · stack tests by state, industry and year

Oil and gas extraction (NAICS 2111): stack tests in West Virginia, 2026

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 2026 at a West Virginia 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 West Virginia, other years

Other industries in West Virginia, 2026

Air-emissions stack tests recorded in West Virginia, 2026

DateFacilityWhereKindAgency
2026-08-04EQT XL MIDSTREAM OPERATING LLC, CHANNING COMPRESSORPROCTOR, Marshall, WVPassState
2026-07-09GOFF CONNECTOR LLC, CONNECTOR STATIONBRIDGEPORT, Harrison, WVPassState
2026-07-09CNX MIDSTREAM OPERATING COMPANY LLC, MAJORSVILLE STATIONALMA, Marshall, WVPassState
2026-06-30GOFF CONNECTOR LLC, CONNECTOR STATIONBRIDGEPORT, Harrison, WVPassState
2026-06-17APPALACHIA MIDSTREAM SERVICES, L.L.C., SAND HILL STATIONDALLAS, Marshall, WVPassState
2026-06-05WILLIAMS OHIO VALLEY MIDSTREAM LLC, OAK GROVEMOUNDSVILLE, Marshall, WVPassState
2026-06-02EQM GATHERING OPCO, LLC, PANDORA STATIONWEST UNION, Doddridge, WVPassState
2026-05-28MOUNTAIN GATHERING, LLC, MCCLELLAND STATIONWORTHINGTON, Marion, WVPassState
2026-05-20DTM APPALACHIA GATHERING, LLC, MEPCO COMPRESSORMAIDSVILLE, Monongalia, WVPassState
2026-05-18ANTERO MIDSTREAM LLC, MIDDLEBOURNE IVMIDDLEBOURNE, Tyler, WVPassState
2026-04-27BLUE RACER MIDSTREAM, LLC, FIELD STATION 1READER, Wetzel, WVPassState
2026-04-08EUREKA MIDSTREAM, LLC, CARBIDE SITEHASTINGS, Wetzel, WVPassState
2026-04-07MARKWEST LIBERTY MIDSTREAM & RESOURCES, L.L.C., MAJORSVILLEDALLAS, Marshall, WVPassState
2026-04-06MARKWEST LIBERTY MIDSTREAM & RESOURCES, L.L.C., SHERWOODWEST UNION, Doddridge, WVPassState
2026-04-02EQM GATHERING OPCO, LLC, SATURN STATIONCENTRAL STATION, Doddridge, WVPassState
2026-04-02CNX MIDSTREAM OPERATING COMPANY LLC, DRY RIDGE STATIONCAMERON, Marshall, WVPassState
2026-03-31MARKWEST LIBERTY MIDSTREAM & RESOURCES, L.L.C., MAJORSVILLEDALLAS, Marshall, WVPassState
2026-03-17MARKWEST LIBERTY MIDSTREAM & RESOURCES, L.L.C., SHERWOODWEST UNION, Doddridge, WVPassState
2026-03-16APPALACHIA MIDSTREAM SERVICES, L.L.C., BUFFALO STATIONBETHANY, Brooke, WVPassState
2026-03-12MARKWEST LIBERTY MIDSTREAM & RESOURCES, L.L.C., MAJORSVILLEDALLAS, Marshall, WVPassState
2026-03-09MARKWEST LIBERTY MIDSTREAM & RESOURCES, L.L.C., MOBLEY GAS PLANTSMITHFIELD, Wetzel, WVPassState
2026-03-05WILLIAMS OHIO VALLEY MIDSTREAM LLC, FT. BEELERCAMERON, Marshall, WVPassState
2026-02-26BLUE RACER MIDSTREAM, LLC, NATRIUM EXTRACTION & FRACTIONANATRIUM, Marshall, WVPassState
2026-02-26COLUMBIA GAS TRANSMISSION, LLC, CEREDOHUNTINGTON, Wayne, WVPassState
2026-02-19ANTERO MIDSTREAM LLC, MONROE STATIONALMA, Tyler, WVPassState
2026-02-18EASTERN GAS TRANSMISSION AND STORAGE, INC., MOCKINGBIRD HILLPINE GROVE, Wetzel, WVPassState
2026-02-11APPALACHIA MIDSTREAM SERVICES, L.L.C., PLEASANTSADALINE, Marshall, WVPassState
2026-02-05APPALACHIA MIDSTREAM SERVICES, L.L.C., MILLER STATIONBANNEN, Marshall, WVPassState
2026-02-03EASTERN GAS TRANSMISSION AND STORAGE, INC., LIGHTBURN STATIONJANE LEW, Lewis, WVPassState
2026-01-29APPALACHIA MIDSTREAM SERVICES, L.L.C., BUFFALO STATIONBETHANY, Brooke, WVPassState

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.