| Lackawanna Energy Center | Invenergy | 3,712,067 | |
| US Steel (Edgar Thomson) | Nippon Steel | 3,576,537 | |
| York Energy Center | Energy Capital Partners | 3,566,413 | |
| Fairless Energy, LLC | Lotus Infrastructure Partners | 2,995,199 | |
| Hummel Station LLC | Capital Power | 2,909,103 | |
| Bailey Mine-Crabapple Portal | Core Natural Resources Inc. | 2,817,632 | |
| Conemaugh | ArcLight Capital Partners | 2,804,426 | |
| Keystone | Keystone (power plant) | 2,778,443 | |
| Bethlehem Power Plant | Energy Capital Partners | 2,638,013 | |
| Moxie Freedom | Caithness Energy | 2,530,181 | |
| CPV Fairview LLC | Osaka Gas | 2,468,430 | |
| Hickory Run Energy Station | Itochu | 2,419,495 | |
| Tenaska Westmoreland Generating Station | Tenaska | 2,416,499 | |
| Enlow Fork Mine | Core Natural Resources Inc. | 2,312,526 | |
| Seward Generation LLC | Robindale Energy | 2,279,070 | |
| Hamilton Patriot | Carlyle Group | 2,273,529 | |
| Hamilton Liberty LLC | Carlyle Group | 2,267,853 | |
| Fayette Energy Facility | Vistra Energy | 2,111,450 | |
| Hunterstown Combined Cycle | LS Power | 1,953,011 | |
| Helix Ironwood, LLC | LS Power | 1,677,037 | |
| Brunner Island, LLC | Talen Energy Corporation | 1,668,140 | |
| Lower Mount Bethel Energy | Talen Energy Corporation | 1,658,680 | |
| Iron Cumberland, LLC | Iron Senergy Holding, LLC | 1,636,800 | |
| Liberty Electric Power Plant | Vistra Energy | 1,591,350 | |
| Shell Chemical Appalachia LLC | Shell PLC | 1,579,719 | |
| Ontelaunee Energy Center | Vistra Energy | 1,578,806 | |
| Springdale Generating Station (55710) | LS Power | 1,524,942 | |
| Hill Top Energy Center LLC | Hill Top Energy Center LLC | 1,441,168 | |
| Harvey Mine | Core Natural Resources Inc. | 1,340,377 | |
| Monroe Energy, LLC, Trainer Refinery | Delta Air Lines | 1,213,827 | |
| Homer City | Homer City Plant (facility) | 1,154,482 | |
| St. Nicholas Cogeneration Project | Rich Family of Companies | 1,133,245 | |
| Marcus Hook Energy Center - MH750 | JERA | 1,117,690 | 50% |
| Marcus Hook Energy Center - MH750 | Lotus Infrastructure Partners | 1,117,690 | 50% |
| Birdsboro Power Project | Birdsboro Power Project | 1,114,143 | |
| Shawville Station | GenOn Holdings, Inc. | 956,343 | |
| Lycoming County Resource Management Services | Lycoming County, PA | 902,757 | |
| Colver Green Energy | Robindale Energy | 897,020 | |
| John B. Rich Memorial Power Station, Gilberton Power Company | Rich Family of Companies | 875,724 | |
| EQM Gathering Opco, LLC - Basin 160A - Appalachian Eastern Overthrust - GB | EQT Corp. | 828,596 | |
| US Steel (Clairton Coke) | Nippon Steel | 769,566 | |
| Panther Creek Energy Facility | Bitfarms | 760,639 | |
| GRAYMONT PA INC/PLEASANT GAP PLT | GRAYMONT LTD | 742,587 | |
| Grays Ferry Cogen Partnership | Antin Infrastructure Partners | 698,236 | |
| Procter & Gamble Paper Products | Procter & Gamble | 685,923 | |
| KEYSTONE CEMENT COMPANY | Heidelberg Materials | 684,874 | |
| HEIDELBERG MATERIALS US CEMENT LLC/ NAZARETH | Heidelberg Materials | 646,387 | |
| Armstrong Power, LLC | LS Power | 627,235 | |
| United Refining Company | Red Apple Group | 625,206 | |
| Northampton Generating Plant | Olympus Holdings | 606,371 | |
| Heidelberg Materials/EVANSVILLE CEMENT PLT & QUARRY | Heidelberg Materials | 558,292 | |
| New Castle | GenOn Holdings, Inc. | 546,395 | |
| Montour, LLC | Talen Energy Corporation | 492,022 | |
| DGOC 160A Production | Diversified Energy | 459,391 | |
| Pixelle Specialty Solutions | H.I.G. Capital | 455,778 | |
| Scrubgrass Generating Plant | Q Power LLC | 452,134 | |
| HERCULES CEMENT STOCKERTOWN PLT QUARRY | Buzzi Unicem | 438,412 | |
| Versum Materials US, LLC | Merck KGaA (EMD) | 403,544 | |
| CNX Midstream Operating Company LLC - 160A Appalachian Basin Eastern Overthrust Area - GB | CNX Resources | 399,829 | |
| Ebensburg Power Company | Robindale Energy | 397,402 | |
| Martins Creek | Talen Energy Corporation | 384,286 | |
| Delaware Valley Resource Recovery Facility | EQT AB | 377,550 | |
| EQT Production - Basin 160A - Appalachian Eastern Overthrust | EQT Corp. | 374,588 | |
| US STEEL - IRVIN WORKS | Nippon Steel | 362,318 | |
| Rausch Creek Generation LLC | Rausch Creek Land | 352,869 | |
| LAFARGE NA WHITEHALL PLANT | Amrize Ltd. | 295,726 | |
| MAGNESITA REFRACTORIES/YORK | RHI Magnesita | 275,645 | |
| Susquehanna Gathering Company, LLC | DT Midstream | 270,789 | |
| Cleveland-Cliffs Steel Corporation /BUTLER WORKS | Cleveland-Cliffs | 269,985 | |
| Hunlock Creek Energy Center | UGI Corp. | 262,324 | |
| NFG Midstream Covington Gathering System | National Fuel Gas | 261,309 | |
| Mt. Carmel Cogeneration | Mt. Carmel Cogen Inc. | 250,388 | |
| Philadelphia Gas Works - Corporate | PHILADELPHIA GAS WORKS | 247,437 | |
| EQM Olympus Midstream LLC - Basin 160A | EQT Corp. | 240,614 | |
| Merck Sharp & Dohme LLC | Merck | 236,625 | |
| Peoples Natural Gas Company, LLC | Essential Utilities Inc. | 234,392 | |
| Pioneer Crossing Landfill | FR&S Inc | 233,448 | |
| DGOC 160A Boosting and Gathering | Diversified Energy | 228,054 | |
| HEP Pennsylvania Gathering LLC Midstream (160A) Operations | ALINDA CAPITAL PARTNERS LLC | 213,161 | |
| FIRST QUALITY TISSUE/LOCK HAVEN PLT | First Quality Enterprises | 212,150 | |
| UGIES boosting & gathering facilities | UGI Corp. | 210,060 | |
| WHEELABRATOR FALLS | Macquarie | 209,656 | |
| Vitro Flat Glass LLC | Vitro S.A.B. de C.V. | 203,651 | |
| Range Resources - Appalachia, LLC - Basin 160A | Range Resources | 199,958 | |
| Bluestone Gathering System | DT Midstream | 191,485 | |
| Heilwood Mine | Rosebud Mining | 184,576 | |
| ARMSTRONG CEMENT & SUPPLY | SNYDER ASSOCIATED COS INC | 184,561 | |
| COVANTA PLYMOUTH RENEWABLE ENERGY LLC | EQT AB | 173,115 | |
| YORK COUNTY RESOURCE RECOVERY | York County, PA | 171,810 | |
| CARPENTER TECHNOLOGY | Carpenter Technology | 168,155 | |
| Domtar Paper Company, LLC | Paper Excellence Group | 165,410 | |
| Pennsylvania Grain Processing, LLC | ZEELAND FARM SERVICES INC | 164,959 | |
| Lancaster Waste to Energy Facility | Lancaster County, PA | 160,651 | |
| CNX Gas Company LLC -160A Appalachian Basin Eastern Overthrust Area | CNX Resources | 159,940 | |
| NFG Midstream Clermont Gathering System | National Fuel Gas | 159,748 | |
| AdvanSix Resins & Chemicals LLC | AdvanSix | 159,665 | |
| Houston Gas Plant | MPLX LP | 159,467 | |
| XTO Energy Inc 160A Appalachian E Overthrust GB | Exxon Mobil | 156,470 | |
| Seneca East Facilities | National Fuel Gas | 153,132 | |
| Cleveland-Cliffs Monessen Coke LLC | Cleveland-Cliffs | 150,425 | |
| CLEVELAND-CLIFFS PLATE LLC-COATESVILLE | Cleveland-Cliffs | 150,076 | |
| KIMBERLY CLARK PA LLC/CHESTER OPR | Kimberly-Clark | 147,529 | |
| ENERGY TRANSFER MARKETING & TERMINALS L.P. - MARCUS HOOK TERMINAL | Energy Transfer | 144,780 | |
| GROWS LDFL WASTE MGMT | Waste Management Inc. | 137,859 | |
| Eastern Gas Transmission and Storage - Leidy and Finnefrock Stations (Stor and Tran) | Berkshire Hathaway | 137,148 | |
| Chambersburg Units 12,13 | LS Power | 135,276 | |
| Bluestone Gas Processing Plant | MPLX LP | 127,802 | |
| TRANSCO STATION 517 | Williams Companies | 125,620 | |
| TRANSCO STATION 607 | Williams Companies | 125,258 | |
| Cleveland-Cliffs Steelton LLC | Cleveland-Cliffs | 124,747 | |
| AMERICAN REFINING GROUP INC | AMERICAN REFINING GROUP INC | 122,544 | |
| Lowry Mine | Rosebud Mining | 122,511 | |
| BRACKENRIDGE PLANT | ATI Inc. | 121,704 | |
| UGI Utilities, Inc. | UGI Corp. | 121,007 | |
| Penn State - University Park | Pennsylvania State University | 118,614 | |
| EQT XL Midstream - 160A | EQT Corp. | 117,494 | |
| CONESTOGA LANDFILL | Republic Services | 116,328 | |
| Arconic US LLC | Apollo Global Management | 115,844 | |
| SUSQUEHANNA RESOURCE MGMT COMPLEX | Lancaster County, PA | 109,851 | |
| Befesa Zinc US INC | Befesa SA | 105,609 | |
| PECO Gas Division | Exelon | 101,868 | |
| NFG Midstream Trout Run Gathering System | National Fuel Gas | 100,359 | |
| TRANSCO STATION 515 | Williams Companies | 98,828 | |
| Knob Creek Mine | Rosebud Mining | 97,758 | |
| NFGSC ELLISBURG STATION | National Fuel Gas | 97,062 | |
| NLMK PENNSYLVANIA LLC | Fletcher Group Holdings Ltd | 96,059 | |
| Appalachian Basin Gathering & Boosting - AAPG Province 160A | EQT Corp. | 92,545 | |
| EAST PENN LYONS SMELTER & BATTERY PLT | East Penn Manufacturing | 92,500 | |
| Crooked Creek Mine | Rosebud Mining | 88,243 | |
| TRANSCO STATION 620 | Williams Companies | 88,104 | |
| US GYPSUM - ALIQUIPPA PLANT | Knauf | 87,870 | |
| LEHIGH WHITE CEMENT CO LLC | Cementir Holding | 82,526 | |
| TRANSCO STATION 610 | Williams Companies | 82,084 | |
| INTERNATIONAL WAXES INC | THE INTERNATIONAL GROUP INC | 81,080 | |
| National Fuel Gas Distribution Corp - Pennsylvania | National Fuel Gas | 77,636 | |
| Vitro Meadville Flat Glass LLC | Vitro S.A.B. de C.V. | 77,135 | |
| OWENS BROCKWAY GLASS CONTAINER INC. PLT 19 | O-I Glass | 76,401 | |
| University of Pittsburgh - of the Commonwealth System of Higher Education | University Of Pittsburgh | 75,463 | |
| Delmont | Enbridge | 72,842 | |
| Gold Bond - SHI Plant | National Gypsum | 72,152 | |
| Springdale Generating Station (55196) | LS Power | 71,494 | |
| Gans Generating Facility | LS Power | 71,022 | |
| Hydro Extrusion USA, LLC | Norsk Hydro | 71,010 | |
| Handsome Lake Energy | Constellation Energy Corporation | 70,786 | |
| MODERN LANDFILL | Republic Services | 69,975 | |
| ARMSTRONG WORLD IND MARIETTA CEILING PLT | Armstrong World Industries | 69,218 | |
| STD STEEL BURNHAM PLT | Nippon Steel | 68,870 | |
| Perulack | Enbridge | 68,711 | |
| Lilly | Enbridge | 66,894 | |
| Bethlehem Landfill Company | Waste Connections Inc. | 66,314 | |
| IPSCO KOPPEL TUBULARS CORP KOPPEL WORKS | Techint | 66,233 | |
| Blue Ridge Landfill Company | Waste Connections Inc. | 65,654 | |
| Brunot Island Power Station | GenOn Holdings, Inc. | 65,476 | |
| CHRIN BROTHERS LANDFILL | CHRIN BROTHERS INC | 65,361 | |
| PEI Power Corporation | BP | 65,144 | |
| PGE, LLC - Basin 160A - Appalachian Eastern Overthrust - GB | Pennsylvania General Energy Company LLC | 62,231 | |
| Ardagh Glass Inc. (Port Allegany) | Ardagh Packaging Group | 61,642 | |
| Carpenter Technology - Latrobe Operations | Carpenter Technology | 61,339 | |
| US GYPSUM - WASHINGTONVILLE PLANT | Knauf | 60,897 | |
| Vicinity Energy Philadelphia, Inc - Schuylkill Station | Antin Infrastructure Partners | 60,479 | |
| Bradford County Landfill | Northern Tier Solid Waste Authority | 60,271 | |
| Peoples/IMG - Pittsburgh International Airport Electric Generating Station | Essential Utilities Inc. | 58,952 | |
| Snyder Brothers Inc. | Snyder Brothers | 58,906 | |
| Pennsylvania General Energy Company LLC | Pennsylvania General Energy Company LLC | 58,121 | |
| Grantville | Enbridge | 55,789 | |
| Jackson Compressor Station | National Fuel Gas | 55,761 | |
| Olympus Energy Production - Basin 160A | EQT Corp. | 54,744 | |
| SONNEBORN LLC/PETROLIA PLT | HF Sinclair Corporation | 54,717 | |
| Mitsubishi Electric Power Products, Inc. | Mitsubishi Electric | 54,656 | |
| Jefferson Compressor Station | EQT Corp. | 53,747 | |
| CLARION BOARDS/CLARION PLT | Kronospan | 53,553 | |
| Pike Compressor Facility | Energy Transfer | 52,898 | |
| TGP Station 219 Mercer | Kinder Morgan | 52,853 | |
| TGP Station 315 Wellsboro | Kinder Morgan | 52,555 | |
| Seneca Landfill, Incorporated | Vogel Holding INC | 52,421 | |
| Eastern Gas Transmission and Storage - Chambersburg Station (Tran) | Berkshire Hathaway | 52,088 | |
| GRAND CTL SANI | Waste Management Inc. | 51,453 | |
| SECCRA Community Landfill | SECCRA Community Landfill | 50,933 | |
| Holbrook | Enbridge | 49,268 | |
| BELLEFIELD BOILER PLANT | BELLEFIELD BOILER PLANT | 48,730 | |
| Snyder Brothers 160A GB | Snyder Brothers | 48,612 | |
| JELD-WEN, INC. | JELD-WEN Holding | 48,573 | |
| ELLWOOD QUALITY STEELS | Ellwood Group | 48,318 | |
| Galaxy Compressor Station | Energy Transfer | 48,032 | |
| ALLIANCE SANI LDFL | Waste Management Inc. | 47,985 | |
| Goff Connector 160A Appalachian Basin (Eastern Overthrust Area) GB | EIV Capital | 47,226 | |
| Redhook Compressor Station | EQT Corp. | 46,864 | |
| PENN STATE MILTON S HERSHEY MED CTR | Pennsylvania State University | 46,847 | |
| PennEnergy Resources, LLC - Basin 160A - Appalachian Eastern Overthrust | Encap Investments | 46,608 | |
| IPSCO KOPPEL TUBULARS CORP AMBRIDGE PLT | Techint | 46,110 | |
| EQT Production - Basin 160A - Appalachian Eastern Overthrust - GB | EQT Corp. | 45,935 | |
| TGP Station 313 Coudersport | Kinder Morgan | 45,015 | |
| Gold Bond - MLT Plant | National Gypsum | 44,822 | |
| TGP Station 321 Clifford | Kinder Morgan | 44,650 | |
| Superior Appalachian Pipeline, LLC. Basin 160A Appalachian Eastern Overthrust GB | Unit Corporation | 44,577 | |
| Arsenal Midstream LLC 160A Appalachian Basin GB | ARSENAL ENERGY HOLDINGS LLC | 43,631 | |
| WHEATLAND TUBE COMPANY - COUNCIL | Zekelman Industries | 42,957 | |
| LAND O LAKES DRY CONDENSED MILK MFG | Land O'Lakes | 42,486 | |
| UNIVERSAL STAINLESS BRIDGEVILLE PLT | Aperam S.A. | 42,448 | |
| Entriken Compressor Station | Enbridge | 42,298 | |
| CLINTON CNTY SOLID W/WAYNE TWP LDFL | Clinton County, PA | 42,256 | |
| Bernville Station | Enbridge | 40,991 | |
| TGP Station 310 Smethport, PA | Kinder Morgan | 40,973 | |
| TEAM TEN LLC DBA AMER EAGLE PAPER MILLS | TEAM TEN LLC | 40,880 | |
| Eastern Gas Transmission and Storage - Oakford and Rock Springs Stations (Stor and Tran) | Berkshire Hathaway | 40,436 | |
| TGP Station 307 Marienville | Kinder Morgan | 40,413 | |
| ELLWOOD MILL PRODUCTS | Ellwood Group | 39,678 | |
| TGP Station 317 Troy, PA | Kinder Morgan | 39,625 | |
| TGP Station 303, Seneca, PA | Kinder Morgan | 39,518 | |
| Armagh Compressor Station | Enbridge | 38,154 | |
| Appalachian Basin - AAPG Province 160A | EQT Corp. | 37,743 | |
| Shermans Dale Station | Enbridge | 37,668 | |
| Bechtelsville | Enbridge | 37,429 | |
| Blackhill Energy, LLC 160A Appalachian Basin (Eastern Overthurst) Gathering & Boosting | Blackhill Energy, LLC | 36,853 | |
| SANOFI PASTEUR | Sanofi | 36,717 | |
| VANDERGRIFT FACILITY | ATI Inc. | 36,310 | |
| Energy Center Pittsburgh LLC | KKR & Co. | 35,906 | |
| VEOLIA ES GREENTREE LDFL | Noble Environmental Inc | 35,793 | |
| WESTMORELAND SANITARY LDFL | Westmoreland Sanitary Landfill LLC | 35,679 | |
| GE Transportation-Erie Plant | Westinghouse Air Brake Technologies (Wabtec) | 35,203 | |
| Harmon Creek Gas Plant | MPLX LP | 34,831 | |
| IMPERIAL Landfill | Republic Services | 34,694 | |
| GLOBAL TUNGSTEN & POWDERS | Plansee Group | 34,669 | |
| ANCHOR ACQUISITION LLC MONACA PLT | Stoelzle Glass Group | 34,496 | |
| UNION ELEC HARMON CREEK PLT | Ampco-Pittsburgh | 34,386 | |
| Energy Center Pittsburgh LLC - Gibbon Plant | KKR & Co. | 34,275 | |
| DELAWARE CNTY SWA/ROLLING HILLS MUNI WASTE LDFL | Delaware County, PA | 34,232 | |
| Arsenal Resources, LLC 160A Appalachian Basin | ARSENAL ENERGY HOLDINGS LLC | 34,125 | |
| JBS SOUDERTON, INC. - RENDERING FACILITY | JBS | 33,821 | |
| Eastern Gas Transmission and Storage - Greenlick and Little Greenlick Stations (Stor and Tran) | Berkshire Hathaway | 33,764 | |
| GREENRIDGE RECLAMATION Landfill | Republic Services | 33,693 | |
| BVPV Styrenics LLC | Alfa S.A.B. | 33,538 | |
| XTO Energy Inc 160A Appalachian E Overthrust | Exxon Mobil | 33,115 | |
| CHESTNUT VALLEY LDFL | Noble Environmental Inc | 33,034 | |
| TEMPLE UNIVERSITY | Temple University Health System | 32,982 | |
| Apex Energy (PA), LLC | CNX Resources | 32,276 | |
| Wolf Run Energy LLC | Tenaska | 32,141 | |
| CALUMET KARNS CITY REFINING, LLC. | Calumet Specialty Products | 31,730 | |
| Eastern Gas Transmission and Storage - Centre Station (Tran) | Berkshire Hathaway | 31,610 | |
| International Paper - Erie Lowville Landfill III | International Paper | 31,443 | |
| COMM REFUSE SVC INC/CUMBERLAND CNTY LDFL | Waste Management Inc. | 31,281 | |
| JESSOP STEEL, LLC WASHINGTON FACILITY | ATI Inc. | 31,117 | |
| Bucknell University | Bucknell University | 31,037 | |
| Geisinger Medical Center | Kaiser Permanente | 30,901 | |
| Eddystone Generating Station | Constellation Energy Corporation | 30,811 | |
| CPG - Easton Compressor Station | TC Energy | 30,634 | |
| Oxbow Creek Energy LLC | Tenaska | 30,522 | |
| COLUMBIA GAS TRANSMISSION LLC ARTEMAS COMPRESSOR STATION | TC Energy | 30,491 | |
| Beaver Dam Energy LLC | Tenaska | 30,439 | |
| Roundtop Energy LLC | Tenaska | 29,364 | |
| MT JEWETT COMPLEX | Koch Industries | 28,851 | |
| Eastern Gas Transmission and Storage - Ellisburg Station (Stor) | Berkshire Hathaway | 28,424 | |
| Corelle Brands - Charleroi Plant | Centre Lane Partners | 27,847 | |
| Eastern Gas Transmission and Storage - Punxsutawney Station (Tran) | Berkshire Hathaway | 27,798 | |
| Mostoller Landfill, Inc. | Waste Management Inc. | 27,663 | |
| Marietta | Enbridge | 27,496 | |
| ConAgra Foods Inc. | ConAgra Brands | 27,380 | |
| LANCHESTER LANDFILL | Chester County, PA | 27,369 | |
| TEMPLE UNIVERSITY HEALTH SCIENCES CAMPUS | Temple University Health System | 26,925 | |
| Synthomer Jefferson Hills LLC | Synthomer | 26,846 | |
| WESTROCK CONVERTING COMPANY - STROUDSBURG MILL | Smurfit Westrock PLC | 26,779 | |
| EXCO Appalachia Midstream, LLC | EXCO Resources | 26,606 | |
| Energy Center Harrisburg LLC | KKR & Co. | 26,487 | |
| Hunlock Unit 4 | UGI Corp. | 26,303 | |
| EVONIK CORPORATION | Evonik Industries | 26,112 | |
| Dairy Farmers of America | Dairy Farmers of America (DFA) | 26,049 | |
| KELLOGG LANCASTER CEREAL PLT | Kellogg Co. | 25,651 | |
| Alpaca Energy LLC | Tenaska | 25,541 | |
| SEPTA Roberts Complex | Southeastern Pennsylvania Transportation Authority | 25,533 | |
| US Steel - Fairless Hills Plant | Nippon Steel | 25,241 | |
| MONROEVILLE LDFL | Waste Management Inc. | 25,126 | |
| WESTERN BERKS COMM LDFL & RECYCLING CTR/ BIRDSBORO | Waste Management Inc. | 24,813 | |
| LAKE VIEW LDFL | Waste Management Inc. | 24,740 | |
| TULLYTOWN RESOURCE RECOVER FACILITY (TRRF) LANDFILL | Waste Management Inc. | 24,350 | |
| COLUMBIA GAS TRANSMISSION LLC WAYNESBURG COMPRESSOR STATION | TC Energy | 24,293 | |
| CPG - Milford Compressor Station | TC Energy | 24,240 | |
| ELLWOOD NATL FORGE | Ellwood Group | 24,129 | |
| Milan Energy LLC | Tenaska | 23,756 | |
| The Children\s Hospital of Philadelphia | Children's Hospital Of Philadelphia | 23,736 | |
| Uniontown | Enbridge | 23,467 | |
| BOEING HELICOPTER DIV | Boeing | 23,332 | |
| Seneca East G&B Facilities | National Fuel Gas | 22,667 | |
| PQ Corp - Chester Plant | PQ Corp. | 22,439 | |
| Fairchild Semiconductor | ON Semiconductor | 22,213 | |
| INMETCO | American Zinc Recycling | 22,033 | |
| Revolution Cryogenic Plant | Energy Transfer | 21,981 | |
| OWENS-BROCKWAY GLASS CONTAINER INC PLT 18 | O-I Glass | 21,921 | |
| ARDEN LDFL | Waste Management Inc. | 21,666 | |
| NEWMAN & CO | NEWMAN & CO | 21,563 | |
| Reading Hospital | Tower Health | 20,807 | |
| NFGSC MERCER COMPRESSOR STATION | National Fuel Gas | 20,406 | |
| Eastern Gas Transmission and Storage - Crayne Station (Tran) | Berkshire Hathaway | 19,522 | |
| Collegeville Holdings LLC | COLLEGEVILLE HOLDINGS LLC | 18,762 | |
| USA VALLEY FAC INC/VALLEY LDFL | Waste Management Inc. | 17,725 | |
| WASTE MANAGEMENT DISPOSAL SERVICE MOUNTAIN VIEW LANDFILL | Waste Management Inc. | 17,210 | |
| Cargill Meat Solutions Corp | Cargill | 16,793 | |
| WARD MANUFACTURING LLC | Hitachi | 16,548 | |
| Standard Forged Products, LLC - McKees Rocks | Arcosa Inc. | 16,013 | |
| NFGSC ROYSTONE STATION | National Fuel Gas | 15,319 | |
| FREY FARM-CRESWELL LDFL | Lancaster County, PA | 15,297 | |
| WSI Sandy Run Landfill, Inc. | Noble Environmental Inc | 15,188 | |
| Sarsen Gas Processing Plant | MPLX LP | 14,868 | |
| North American Hoganas | Foundation Asset Management (FAM) | 13,599 | 50% |
| North American Hoganas | Lindengruppen | 13,599 | 50% |
| Constellation Compressor Station | ONEIDA VALLEY MIDSTREAM LLC | 13,161 | |
| LAUREL HIGHLANDS LANDFILL | Waste Management Inc. | 12,580 | |
| Iron Pennsylvania Land LLC | Iron Senergy Holding, LLC | 12,310 | |
| COLUMBIA GAS TRANS LLC SALISBURY COMP STA | TC Energy | 12,256 | |
| LEHIGH HEAVY FORGE CORP/BETHLEHEM | Park Corp. | 12,074 | |
| GREATER LEBANON REFUSE LDFL | Greater Lebanon Refuse Authority | 11,616 | |
| MCKEAN CNTY LDFL | Casella Waste Systems | 11,529 | |
| SOUTHERN ALLEGHENIES LDFL | Noble Environmental Inc | 9,954 | |
| XPR Resources LLC | XPR Resources LLC | 9,942 | |
| EXCO Resources (PA), LLC - Basin 160A | EXCO Resources | 9,763 | |
| KELLY RUN SANITATION | Waste Management Inc. | 9,123 | |
| South Hills (Armoni) Landfill | Waste Management Inc. | 9,109 | |
| LOLA Energy PetroCo | Lola Energy | 8,910 | |
| Hazleton Generation | Lotus Infrastructure Partners | 8,166 | |
| EVERGREEN LANDFILL/FKA PELLEGRENE SITE | Waste Management Inc. | 6,854 | |
| CLEVELAND-CLIFFS PLATE LLC/CONSHOHOCKEN PLT | Cleveland-Cliffs | 6,624 | |
| Hitachi Energy USA, Inc. | Hitachi | 5,928 | |
| SHADE LDFL | Waste Management Inc. | 5,808 | |
| NORTHWEST SANI LDFL | Waste Management Inc. | 5,566 | |
| COUNTY ENVIRONMENTAL LANDFILL OF CLARION | Republic Services | 5,289 | |
| WASTE MGMT DSPL SVC OF PA POTTSTOWN LDFL | Waste Management Inc. | 4,246 | |
| PECO Transmission and Distribution | Exelon | 3,764 | |
| Airgas Therapeutics LLC - Scott Medical Products | Air Liquide | 2,299 | |
| GE's Grid Solutions | GE Vernova | 1,486 | |
| KEYSTONE SANITARY LANDFILL | KEYSTONE SANITARY LANDFILL INC | 1,212 | |
| UGID Broad Mountain LLC/Hegins | UGI Corp. | 154 | |
