| A & R Transport Inc | 38 | 38 | 9,649.42 |
| Aaa Galvanizing Inc | 39 | 45 | 22,106.89 |
| Ajax Cleaners | 1 | 1 | 3,180.00 |
| Altrachem Inc | 1 | 1 | 0.88 |
| Anr Pipeline Co | 45 | 93 | 16,756.28 |
| Birmingham Steel Corp | 5 | 5 | 155,520.00 |
| C & S Chemicals Inc | 1 | 2 | 780.00 |
| Caterpillar Inc | 46 | 497 | 392,810.17 |
| Cdt Landfill | 28 | 29 | 38,340.32 |
| Ceramic Powders Mfg Plant | 7 | 13 | 4,601.30 |
| Clark Station #1188 | 1 | 1 | 21,300.00 |
| Commonweath Edison Co | 25 | 27 | 432.35 |
| Desoto Llc - Chemical Products Division | 3 | 9 | 53,860.00 |
| Dow Chemical Co. | 0 | 0 | 0.00 |
| Ecolab Inc | 44 | 92 | 16,759.77 |
| Elgin, Joliet & Eastern Railway Co | 8 | 21 | 4,132.18 |
| Exxonmobil Oil Corp | 41 | 614 | 14,922,726.83 |
| Filtration Group Inc | 2 | 2 | 400.00 |
| Flexible Products Co | 1 | 3 | 6,253.78 |
| Gallagher Asphalt | 28 | 34 | 35,498.56 |
| Glenn Tibble Custom Cabinetry Inc | 1 | 1 | 200.00 |
| Grosshening | 2 | 3 | 360.00 |
| Grosshening | 39 | 53 | 38,952.32 |
| H S West Campus | 39 | 39 | 9,023.19 |
| Heritage Fs Inc | 7 | 7 | 855.84 |
| Heritage Fs Inc | 7 | 7 | 417.52 |
| Heritage Fs Inc | 7 | 8 | 8,359.96 |
| Housing Auth Of Joliet/John O'Holmes Cmp | 8 | 8 | 1,340.20 |
| Industrial Color Inc | 39 | 123 | 16,649.63 |
| Ineos Silicas Americas Llc | 39 | 259 | 90,382.21 |
| Ivex Packaging Corp | 44 | 198 | 67,651.28 |
| James Cape & Sons- Wisconsin | 2 | 5 | 49,980.00 |
| Joliet Correctional Center | 40 | 44 | 18,659.21 |
| Joliet Equipment Co | 2 | 2 | 200.00 |
| Joliet Generating Station (#9 & #29) | 81 | 116 | 16,342,071.41 |
| Joliet Park District Airport | 3 | 3 | 169,820.00 |
| Joliet Sand & Gravel Co | 2 | 5 | 14,280.00 |
| Joliet Youth Center-Dept Of Corrections | 41 | 121 | 3,749.59 |
| Kaluzny Bros. Inc | 39 | 53 | 20,808.28 |
| Kms Energy Inc | 5 | 5 | 58,640.00 |
| Kms Joliet Power Partners Lp | 6 | 6 | 90,720.00 |
| Kozy Acres Pet Cemetery And Crematory | 37 | 37 | 6,496.37 |
| Matheson Trigas Inc | 39 | 80 | 804.72 |
| Midwest Generation Llc | 85 | 586 | 58,467,799.62 |
| Midwest Services Inc | 1 | 2 | 8,020.00 |
| Mpg Industries Inc | 1 | 1 | 0.02 |
| Natural Gas Pipeline Co | 2 | 2 | 14,840.44 |
| Nicor Gas | 7 | 13 | 1,851.48 |
| Northfield Block Co | 5 | 14 | 9,055.14 |
| Norwalk Tank Co | 11 | 13 | 2,055.03 |
| Olin Corp | 39 | 43 | 7,226.05 |
| Ozinga Illinois Rmc Inc | 39 | 52 | 16,695.68 |
| Phibro-Tech Inc | 39 | 117 | 21,408.13 |
| Pohlers Industrial Electric Service | 13 | 13 | 120.01 |
| Printing Craftsmen Of Joliet Inc | 1 | 1 | 3,200.00 |
| Provena Hospitals D/B/A St. Joseph Medical Center | 38 | 38 | 24,103.69 |
| Quality Laundry Services Inc | 1 | 1 | 2,533.44 |
| Return Logistics Inc | 1 | 1 | 120.00 |
| Rho Chemicals Co | 40 | 44 | 1,099.43 |
| Riverside Resource Recovery Llc | 5 | 5 | 25,020.00 |
| Seeler Industries Inc | 2 | 2 | 880.00 |
| Sheffield Steel Corp | 38 | 38 | 44,354.67 |
| Silver Cross Hospital | 38 | 54 | 1,510.83 |
| Smurfit-Stone Container Corp | 39 | 42 | 4,768.44 |
| Speedway Station 7455 | 2 | 2 | 11,520.00 |
| Stateville Correctional Center | 39 | 43 | 12,477.68 |
| Tezak Funeral Home | 37 | 37 | 5,685.46 |
| Transport Service Co | 38 | 40 | 12,425.49 |
| Universal Head Co Inc | 2 | 2 | 5,440.00 |
| Us Department Of Labor | 39 | 39 | 11,446.25 |
| Vulcan Construction Materials Lp | 2 | 4 | 6,300.00 |
