| PRAIRIE STATE GENERATING STATION | Prairie State Energy Campus (facility) | 11,456,295 | |
| Baldwin Energy Complex | Vistra Energy | 6,075,627 | |
| Archer Daniels Midland Co. | Archer Daniels Midland | 3,819,217 | |
| Newton | Vistra Energy | 3,469,290 | |
| EXXONMOBIL OIL JOLIET REFINERY | Exxon Mobil | 2,601,421 | |
| Jackson Generation | Electric Power Development Co. Ltd. | 2,548,465 | |
| Kendall Energy Facility | Vistra Energy | 2,395,261 | |
| Kincaid Generation, LLC | Vistra Energy | 2,381,917 | |
| WRB Refining LP Wood River Refinery | Cenovus Energy | 2,098,504 | 50% |
| WRB Refining LP Wood River Refinery | Phillips 66 | 2,098,504 | 50% |
| Lemont Refinery | PDVSA (Petroleos de Venezuela S.A.) | 1,857,829 | |
| Robinson Refinery | Marathon Petroleum | 1,826,459 | |
| US STEEL - GRANITE CITY | Nippon Steel | 1,757,626 | |
| Powerton | NRG Energy | 1,701,459 | |
| Three Rivers Energy Center | Three Rivers Energy Center | 1,347,781 | |
| Nelson Energy Center | Invenergy | 1,116,338 | |
| Marion | SOUTHERN ILLINOIS POWER COOPERATIVE | 1,047,164 | |
| East Dubuque Nitrogen Fertilizers, LLC | Icahn Enterprises | 807,616 | |
| ILLINOIS CEMENT CO | Eagle Materials | 761,561 | |
| Dallman | City of Springfield, IL | 751,624 | |
| White Oak Resources Mine No. 1/Hamilton County Coal | Alliance Resource Partners | 742,289 | |
| 3M Chemical Operations' Cordova Facility | 3M Company | 637,397 | |
| Sugar Camp Energy, LLC | Foresight Energy | 621,219 | |
| Elwood Energy Facility | Electric Power Development Co. Ltd. | 564,115 | |
| Pond Creek No. 1 Mine | Foresight Energy | 553,182 | |
| Ingredion Incorporated Argo Plant | Ingredion | 536,533 | |
| Marquis Energy - Illinois LLC | MARQUIS ENERGY LLC | 505,124 | |
| Holland Energy Facility | Hoosier Energy | 499,613 | 50% |
| Holland Energy Facility | Wabash Valley Power Association | 499,613 | 50% |
| GATEWAY ENERGY & COKE CO LLC | SunCoke Energy | 472,577 | |
| Matheson - LEMONT PLANT | Mitsubishi Chemical | 440,482 | |
| Primary Products Ingredients Americas LLC - Decatur | KPS Capital Partners | 419,702 | |
| Joliet 29 | NRG Energy | 417,353 | |
| Morris Cogeneration, LLC | I Squared Capital | 415,911 | |
| Holcim (US) INC JOPPA PLANT | Amrize Ltd. | 380,737 | |
| Alto Pekin, LLC | Alto Ingredients | 348,036 | |
| Cordova Energy Company | Berkshire Hathaway | 293,296 | |
| AUX SABLE LIQUID PRODUCTS INC | Aux Sable Companies | 290,346 | |
| BioUrja Renewables LLC | BioUrja | 269,843 | |
| WINNEBAGO LANDFILL | Waste Connections Inc. | 268,871 | |
| EQUISTAR CHEMICALS LP | LyondellBasell Industries | 268,440 | |
| Aurora Generating Station | LS Power | 218,334 | |
| UNIVERSITY OF ILLINOIS | University of Illinois | 212,947 | |
| Fuyao Glass Illinois Inc. | Fuyao Glass | 196,678 | |
| CHS-Rochelle | CHS Inc. | 192,859 | |
| CATERPILLAR INC.-MAPLETON | Caterpillar Inc. | 189,158 | |
| Zion Energy Center | Energy Capital Partners | 189,105 | |
| ONE EARTH ENERGY LLC | REX AMERICAN RESOURCES | 184,415 | |
| PATRIOT RENEWABLE FUELS LLC | CHS Inc. | 180,859 | |
| BIG RIVER RESOURCES GALVA LLC | Growmark | 171,305 | |
| Alto ICP, LLC | Alto Ingredients | 163,962 | |
| ROXANA LANDFILL | Republic Services | 158,126 | |
| The Peoples Gas Light and Coke Company | WEC Energy Group | 155,489 | |
| Invenergy Nelson Expansion LLC | Invenergy | 152,472 | |
| CLEVELAND-CLIFFS RIVERDALE LLC | Cleveland-Cliffs | 147,556 | |
| Green Plains Madison LLC | Green Plains Inc. | 146,050 | |
| Spartan Light Metal Products, Inc. | Spartan Light Metal Products | 143,026 | |
| NICOR GAS | Southern Company | 142,878 | |
| LIVINGSTON LANDFILL | Republic Services | 138,716 | |
| Elgin Energy Center, LLC | Partners Group | 134,561 | |
| ADVANCED DISPOSAL ORCHARD HILLS LANDFILL INC | Waste Management Inc. | 129,482 | |
| KEYSTONE STEEL & WIRE CO | GFG Alliance | 126,064 | |
| UNIVERSITY OF ILLINOIS AT CHICAGO | University of Illinois | 122,905 | |
| SOUTHERN ILLINOIS UNIVERSITY | SOUTHERN ILLINOIS UNIVERSITY | 121,829 | |
| NUCOR STEEL KANKAKEE, INC. | Nucor | 120,039 | |
| PRAIRIE VIEW RECYCLING & DISPOSAL FAC | Waste Management Inc. | 117,005 | |
| UNIVERSITY OF CHICAGO | University of Chicago | 115,066 | |
| ADM QUINCY | Archer Daniels Midland | 112,816 | |
| DEKALB COUNTY LANDFILL | Waste Management Inc. | 109,707 | |
| WASHINGTON MILLS HENNEPIN INC. | WASHINGTON MILLS CO | 108,759 | |
| Flint Hills Resources Joliet, LLC | Ineos | 106,698 | |
| LSP University Park, LLC | LS Power | 105,330 | |
| WHITESIDE COUNTY LANDFILL | Whiteside County, IL | 104,452 | |
| Befesa Zinc US INC | Befesa SA | 101,160 | |
| WEDRON COMPLEX (WEDRON SILICA CO & TECHNISAND WEDRON) | Covia Holdings | 97,629 | |
| Advanced Tri-Gen Power Systems, LLC | Caterpillar Inc. | 96,957 | |
| PILKINGTON N.A. | Nippon Sheet Glass | 94,502 | |
| Air Products and Chemicals, Inc. - Joliet, IL H2 Plant | Air Products & Chemicals | 94,357 | |
| Shelby County Energy Center | Earthrise Energy | 93,623 | |
| Ameren Illinois | Ameren | 92,479 | |
| PERRY RIDGE LANDFILL INC | Gere Properties Inc. | 90,416 | |
| ADKINS ENERGY LLC | ADKINS ENERGY LLC | 89,423 | |
| Milam Recycling and Disposal Facility | Waste Management Inc. | 89,231 | |
| LANDFILL 33 LTD | RUMPKE CONSOLIDATED COS INC | 87,640 | |
| CLINTON LANDFILL INC | GFL Environmental | 86,216 | |
| STERLING STEEL COMPANY LLC | Leggett & Platt | 85,048 | |
| LEE COUNTY LANDFILL | Republic Services | 81,142 | |
| Deer Run Mine | Foresight Energy | 81,125 | |
| Knox County Landfill | Knox County, IL | 79,811 | |
| Ardagh Glass Inc. (Dolton) | Ardagh Packaging Group | 79,744 | |
| SUMNER LANDFILL | Republic Services | 79,474 | |
| Prairie Eagle Mine | Knight Hawk Holdings, LLC | 76,639 | |
| NORTHWESTERN UNIVERSITY | Northwestern University | 74,623 | |
| EVONIK CORPORATION | Evonik Industries | 73,207 | |
| QUAD CITIES LANDFILL PHASE IV | Waste Connections Inc. | 73,162 | |
| ZION LANDFILL | GFL Environmental | 69,599 | |
| Eco Hill Landfill | Ecology Solutions LLC | 68,253 | |
| LINCOLNLAND AGRI-ENERGY LLC | LINCOLNLAND AGRI-ENERGY LLC | 65,217 | |
| COUNTRYSIDE LANDFILL | Waste Management Inc. | 64,482 | |
| COTTONWOOD HILLS LANDFILL | Waste Management Inc. | 63,380 | |
| INCOBRASA INDUSTRIES LTD | INCOBRASA INDUSTRIES LTD | 62,585 | |
| CONTINENTAL TIRE the AMERICAS, LLC | Continental AG | 61,002 | |
| ALLIANCE PIPELINE LP-Tampico | Pembina Pipeline Corp. | 60,344 | |
| Rockford Energy Center | LS Power | 60,032 | |
| Rochelle Municipal Landfill | Waste Connections Inc. | 59,181 | |
| U.S. DOE ARGONNE NATIONAL LABORATORY | U.S. Government | 59,067 | |
| West End Disposal Facility | Waste Connections Inc. | 57,558 | |
| INEOS US Chemicals Company Naperville Campus | Ineos | 55,111 | |
| ABBOTT PARK FACILITY | Abbott Laboratories | 53,456 | |
| Caterpillar Inc. - East Peoria Plant | Caterpillar Inc. | 52,137 | |
| Ford Motor Company - Chicago Assembly Plant | Ford Motor | 51,797 | |
| NGPL Station 201 Storage, Herscher, IL | Kinder Morgan | 51,527 | |
| Lee County Generating Station, LLC | Rockland Capital | 51,309 | |
| Koppers Inc. Stickney Plant | Koppers | 51,240 | |
| CSL BEHRING LLC | CSL Limited | 49,729 | |
| U. S. Silica Company Ottawa Plant | Apollo Global Management | 48,725 | |
| VIPER MINE | Knight Hawk Holdings, LLC | 48,442 | |
| STEPAN CO | Stepan | 48,421 | |
| Gibson City Energy Center, LLC | Earthrise Energy | 48,382 | |
| UPPER ROCK ISLAND COUNTY LANDFILL | Republic Services | 47,750 | |
| INDIAN CREEK LANDFILL #2 | GFL Environmental | 47,463 | |
| AFTON CHEMICAL CORP | NewMarket Corp. | 47,112 | |
| ILLINOIS LANDFILL INC | Republic Services | 46,770 | |
| University Park Energy | LS Power | 46,087 | |
| BUNGE LODERS CROKLAAN USA, LLC | Bunge | 44,845 | |
| NOURYON SURFACE CHEMISTRY LLC | Carlyle Group | 44,375 | |
| CHICAGO O'HARE INTERNATIONAL AIRPORT | Chicago Department of Aviation | 43,687 | |
| Tilton Power Station | Tremolo Energy, LLC | 43,121 | |
| NGPL Station 310 Centralia, IL | Kinder Morgan | 41,691 | |
| SOUTHERN ILLINOIS REGIONAL LANDFILL | Republic Services | 41,232 | |
| JBS/Swift Pork Company | JBS | 41,138 | |
| Wheatland Prairie Recycling and Disposal Facility | Waste Management Inc. | 40,470 | |
| Crete Energy Park | Earthrise Energy | 40,227 | |
| JAMES HARDIE BUILDING PRODUCTS, INC. (PERU) | James Hardie Building Products | 39,674 | |
| NGPL Station 311 Hammond, IL | Kinder Morgan | 39,038 | |
| OWENS-BROCKWAY GLASS CONTAINER INC. PLANT 09 | O-I Glass | 38,945 | |
| Morris Community Landfill | City of Morris, IL | 38,123 | |
| North Chicago Facility | AbbVie | 38,078 | |
| ENERGY SYSTEMS GROUP, LLC- North Chicago Energy Center | Amalgamated Investments Co. | 35,394 | |
| Gunite Corporation | Crestview Partners | 35,221 | |
| TYSON FRESH MEATS INC | Tyson Foods | 34,753 | |
| WAYNE COUNTY LANDFILL | Republic Services | 34,626 | |
| FINKL & SONS CO | Swiss Steel | 34,617 | |
| NGPL Station 312 Cropsey, IL | Kinder Morgan | 34,121 | |
| Solvay USA | Solvay | 32,670 | |
| ANR Pipeline Woodstock CS | TC Energy | 32,160 | |
| PEOPLES GAS LIGHT AND COKE CO | WEC Energy Group | 31,673 | |
| SMITHFIELD FARMLAND CORP-MONMOUTH | WH Group | 30,838 | |
| Nicor Gas Ancona | Southern Company | 30,256 | |
| TITAN TIRE CORPORATION OF FREEPORT | Titan International | 30,192 | |
| Kensing LLC | One Rock Capital Partners | 30,170 | |
| Fiberteq, LLC | Owens Corning | 30,168 | |
| BRICKYARD DISPOSAL LANDFILL | Republic Services | 29,589 | |
| SOLAE CO GIBSON | International Flavors & Fragrances | 29,575 | |
| 31st Street Landfill | ARCHDIOCESE OF CHICAGO | 29,264 | |
| PEORIA/CITY-COUNTY LANDFILL #1 AND #2 | Peoria County, IL | 29,088 | |
| ADVANCED DISPOSAL VALLEY VIEW LANDFILL INC | Waste Management Inc. | 29,067 | |
| NGPL Station 110 Geneseo, IL | Kinder Morgan | 28,154 | |
| Interstate | City of Springfield, IL | 27,824 | |
| Wieland Rolled Products North America | Wieland-Werke AG | 27,293 | |
| REG Seneca, LLC | Chevron | 25,966 | |
| Pinckneyville Power Plant | Ameren | 25,883 | |
| Naval Station - Great Lakes | U.S. Government | 25,551 | |
| LOYOLA UNIVERSITY MEDICAL CENTER | Trinity Health | 25,510 | |
| Bunge Chevron Ag Renewables LLC Cairo Facility | Bunge | 25,357 | 50% |
| Bunge Chevron Ag Renewables LLC Cairo Facility | Chevron | 25,357 | 50% |
| Rockford Energy Center II | LS Power | 24,844 | |
| ILLINOIS STATE UNIVERSITY | State of Illinois | 24,728 | |
| FIVE OAKS RECYCLING & DISPOSAL FACILITY | Waste Management Inc. | 24,473 | |
| Gold Bond - WAK Plant | National Gypsum | 24,406 | |
| ALTON STEEL COMPANY | ALTON STEEL INC | 24,279 | |
| NGPL Station 206 Storage, St Elmo, IL | Kinder Morgan | 24,263 | |
| PANHANDLE EASTERN PIPE LINE CO - GLENARM | Energy Transfer | 23,502 | |
| WESTERN ILLINOIS UNIVERSITY | State of Illinois | 23,211 | |
| FCA Belvidere Assembly Plant | Stellantis | 23,146 | |
| Mexichem Specialty Resins, Inc. | Orbia Advance Corporation | 22,990 | |
| LANDCOMP LANDFILL | Republic Services | 22,186 | |
| SABIC Innovative Plastics US LLC | Saudi Arabian Oil Company (Saudi Aramco) | 22,121 | |
| PANHANDLE EASTERN PIPE LINE CO - TUSCOLA | Energy Transfer | 21,876 | |
| GPLC JOLIET SALES | Oneok | 21,725 | |
| W. R. Grace & Co. | Standard Industries Inc. | 21,412 | |
| OLIN WINCHESTER, LLC | Olin Corp. | 21,276 | |
| Northwestern Memorial Hospital | Northwestern Medicine | 20,854 | |
| G & W Electric Company | G & W Electric | 20,353 | |
| TC INDUSTRIES INC | TC INDUSTRIES INC | 19,444 | |
| RAIN CII CARBON LLC - ROBINSON CALCINING PLANT | Rain Carbon | 19,413 | |
| Nicor Gas Troy Grove | Southern Company | 18,300 | |
| Hickory Ridge Landfill, Inc. | GFL Environmental | 16,982 | |
| S&C Electric Company | S&C Electric Company | 16,733 | |
| Gateway North Mine | Peabody Energy | 16,290 | |
| NORTHWESTERN UNIVERSITY CHICAGO CAMPUS | Northwestern University | 15,463 | |
| MALLARD LAKE LANDFILL | Republic Services | 14,874 | |
| PROGRESS RAIL LOCOMOTIVE INC | Caterpillar Inc. | 14,581 | |
| SANGAMON VALLEY LANDFILL INC | Republic Services | 14,548 | |
| HONEYWELL INTERNATIONAL INC | Honeywell International | 14,137 | |
| CID RECYCLING & DISPOSAL FACILITY | Waste Management Inc. | 13,419 | |
| PANHANDLE EASTERN PIPE LINE CO - PLEASANT HILL | Energy Transfer | 12,993 | |
| WM of IL - Greene Valley RDF | FOREST PRESERVE DISTRICT OF DUPAGE COUNTY | 12,055 | |
| Rocky Road Power, LLC | Partners Group | 11,937 | |
| Alsey Station | PRAIRIE POWER INC | 11,569 | |
| Lincoln Generating Facility | Earthrise Energy | 9,739 | |
| SETTLERS HILL RDF/MIDWAY LANDFILL | Kane County, IL | 9,618 | |
| Venice | Ameren | 9,183 | |
| Chicago White Metal Castings Inc | Chicago White Metal Casting | 8,584 | |
| Ameren Illinois Electric | Ameren | 7,609 | |
| Litchfield-Hillsboro Landfill | Republic Services | 6,795 | |
| LAKE LANDFILL | Waste Management Inc. | 6,685 | |
| CONGRESS DEVELOPMENT CO LANDFILL | Republic Services | 5,611 | |
| ENVIROFIL OF ILLNOIS INC | Waste Management Inc. | 5,549 | |
| Goose Creek Power Plant | Ameren | 4,614 | |
| TAZEWELL RECYCLING & DISPOSAL FACILITY | Waste Management Inc. | 4,548 | |
| CHAIN OF ROCKS RECYCLING & DISPOSAL | Waste Management Inc. | 4,385 | |
| ANR Pipeline Sandwich CS | TC Energy | 4,084 | |
| Kinmundy Power Plant | Ameren | 3,619 | |
| ADS/MCLEAN COUNTY LANDFILL | Republic Services | 3,070 | |
| ENVIRONTECH LANDFILL | Republic Services | 2,883 | |
| BEECHER LANDFILL | Waste Management Inc. | 2,359 | |
| COLES COUNTY LANDFILL | Republic Services | 1,934 | |
| KANKAKEE RDF | Waste Management Inc. | 1,764 | |
| Waukegan | NRG Energy | 1,597 | |
| ILLINOIS GAS COMPANY | ILLINOIS GAS COMPANY | 1,491 | |
| Quad Cities Landfill Phase 1&2/3 | Republic Services | 1,444 | |
| Raccoon Creek Power Plant | Ameren | 899 | |
| Joliet 9 | NRG Energy | 547 | |
| Cairo Public Utility | City of Cairo, IL | 545 | |
| Grand Tower Energy Center, LLC | Rockland Capital | 0 | |