| 1 | Montana Resources LLC | Butte | Metal Mining | 215.2M lbs | 12 |
| 2 | Colstrip Steam Electric Station | Colstrip | Electric Utilities | 46.3M lbs | 38 |
| 3 | Smc Nye Mine Site | Nye | Metal Mining | 3.4M lbs | 14 |
| 4 | Stillwater Mining Co East Boulder Mine | Big Timber | Metal Mining | 2.0M lbs | 14 |
| 5 | Colstrip Energy LP Rosebud Power Plant | Colstrip | Electric Utilities | 916.9K lbs | 16 |
| 6 | Par Montana Billings Refinery | Billings | Petroleum | 881.7K lbs | 38 |
| 7 | Weyerhaeuser Nr | Columbia Falls | Wood Products | 866.1K lbs | 5 |
| 8 | Chs Inc. Laurel Refinery | Laurel | Petroleum | 816.2K lbs | 33 |
| 9 | Sidney Sugars Inc | Sidney | Food | 742.1K lbs | 5 |
| 10 | Big Sky Scientific L.L.C. | Sun River | Miscellaneous Manufacturing | 626.5K lbs | 1 |
| 11 | Calumet Montana Refining Llc. | Great Falls | Petroleum | 607.1K lbs | 20 |
| 12 | Western Sugar COOPERATIVE.130130 | Billings | Food | 582.2K lbs | 5 |
| 13 | Jupiter Sulphur LLC | Billings | Chemicals | 539.8K lbs | 5 |
| 14 | Hardin Generating Station | Hardin | Electric Utilities | 530.0K lbs | 16 |
| 15 | Roseburg Forest Products Co. - Missoula Particleboard | Missoula | Wood Products | 489.3K lbs | 4 |
| 16 | Phillips 66 Co Billings Refinery | Billings | Petroleum | 465.0K lbs | 39 |
| 17 | Graymont Western US Inc Indian Creek Lime Production | Townsend | Nonmetallic Mineral Product | 319.1K lbs | 4 |
| 18 | Lewis & Clark Station | Sidney | Electric Utilities | 263.5K lbs | 4 |
| 19 | Barrick Gold Corp-Golden Sunlight Mine | Whitehall | Metal Mining | 215.1K lbs | 7 |
| 20 | Gcc-Three Forks LLC | Three Forks | Nonmetallic Mineral Product | 210.7K lbs | 5 |
| 21 | Lubrizol | Victor | Miscellaneous Manufacturing | 121.3K lbs | 1 |
| 22 | American Chemet Corp | East Helena | Chemicals | 110.6K lbs | 5 |
| 23 | Dave Gates Generating Station | Anaconda | Electric Utilities | 107.7K lbs | 1 |
| 24 | Hexion Inc. | Missoula | Chemicals | 89.5K lbs | 4 |
| 25 | Montana Sulphur & Chemical Co | Billings | Chemicals | 75.6K lbs | 3 |
| 26 | Ash Grove Cement Co Montana City Plant | Clancy | Nonmetallic Mineral Product | 69.5K lbs | 5 |
| 27 | Solvay USA LLC Silver Bow Plant | Butte | Chemicals | 60.0K lbs | 2 |
| 28 | Lfm Laurel West | Laurel | Plastics and Rubber | 39.3K lbs | 1 |
| 29 | US Army National Guard Fort Harrison Ranges | Fort Harrison | Other | 35.6K lbs | 1 |
| 30 | Montana Silversmiths | Columbus | Miscellaneous Manufacturing | 27.6K lbs | 4 |
| 31 | Rec Silicon | Butte | Primary Metals | 25.4K lbs | 1 |
| 32 | Lfm Laurel East | Laurel | Plastics and Rubber | 24.9K lbs | 1 |
| 33 | US Army National Guard Limestone Hills Ranges | Townsend | Other | 23.0K lbs | 2 |
| 34 | Brenntag Pacific Inc Mossmain Ln | Billings | Chemical Wholesalers | 20.0K lbs | 5 |
| 35 | Phillips 66 Missoula Products Terminal | Missoula | Petroleum Bulk Terminals | 19.6K lbs | 10 |
| 36 | Darigold-Bozeman | Bozeman | Food | 14.3K lbs | 2 |
| 37 | US Dod Usaf Malmstrom Afb | Malmstrom Afb | Other | 13.2K lbs | 1 |
| 38 | Corixa Corp D/b/a Glaxosmithkline Vaccines - Hamilton | Hamilton | Chemicals | 10.8K lbs | 3 |
| 39 | Bakken Gas Plant | Sidney | Natural Gas Processing | 10.7K lbs | 7 |
| 40 | US Antimony Corp | Thompson Falls | Primary Metals | 9.7K lbs | 1 |
| 41 | Thatcher Co of North Dakota Inc | Glendive | Chemicals | 4.7K lbs | 6 |
| 42 | Loveland Products Inc-Billings (formerly Transbas) | Billings | Chemicals | 3.2K lbs | 7 |
| 43 | Smc Precious Metals Smelter & Base Metals Refinery | Columbus | Primary Metals | 3.1K lbs | 16 |
| 44 | US Cbp Roosville Port of Entry #MT0008 | Eureka | Other | 2.1K lbs | 1 |
| 45 | Jtl Group Billings (dba - Knife River Billings) | Billings | Petroleum | 1.9K lbs | 4 |
| 46 | Jtl Group Belgrade DBA Knife River - Belgrade | Belgrade | Petroleum | 1.6K lbs | 5 |
| 47 | Helena Sand & Gravel DBA Montana Materials & Const | Anaconda | Nonmetallic Mineral Product | 1.5K lbs | 2 |
| 48 | Jtl Group-Kalispell DBA Knife River - Kalispell | Kalispell | Petroleum | 790 lbs | 4 |
| 49 | Knife River Billings East Site | Billings | Petroleum | 750 lbs | 5 |
| 50 | Jtl Group Missoula (dba Knife River-Missoula) | Missoula | Petroleum | 618 lbs | 4 |
| 51 | Montana Precision Products LLC | Butte | Primary Metals | 614 lbs | 4 |
| 52 | Nalco Company-Baker | Baker | Chemical Wholesalers | 484 lbs | 6 |
| 53 | US Cbp Sweetgrass Port of Entry #MT0025 | Sweetgrass | Other | 414 lbs | 1 |
| 54 | Pfp Industries LLC - Miles City Mt Facility | Miles City | Chemicals | 250 lbs | 1 |
| 55 | US Cbp Raymond Port of Entry Be# MT0050 | Raymond | Other | 167 lbs | 1 |
| 56 | US Cbp Piegan Port of Entry #MT0001 | Babb | Other | 132 lbs | 1 |
| 57 | Thompson River Lumber | Thompson Falls | Wood Products | 98 lbs | 1 |
| 58 | Helena Sand & Gravel Inc | Helena | Nonmetallic Mineral Product | 55 lbs | 1 |
| 59 | Ben Taylor Inc Bulk Facility | Shelby | Petroleum Bulk Terminals | 52 lbs | 11 |
| 60 | Idaho Forest Group- St. Regis | Saint Regis | Wood Products | 28 lbs | 2 |
| 61 | Western Emulsions Inc Billings Plant | Billings | Petroleum | 8 lbs | 2 |
| 62 | Decker Coal Co | Decker | Coal Mining | 6 lbs | 3 |
| 63 | Quikrete - Montana Plant | Billings | Nonmetallic Mineral Product | 0 lbs | 1 |
| 64 | Forterra Concrete Products - Billings | Billings | Nonmetallic Mineral Product | 0 lbs | 1 |
| 65 | Forterra Concrete Products - Helena | Helena | Nonmetallic Mineral Product | 0 lbs | 1 |
| 66 | Cityservicevalcon LLC Kalispell Bulk Facility | Kalispell | Petroleum Bulk Terminals | 0 lbs | 10 |
| 67 | Cityservicevalcon LLC Billings Bulk Facility | Billings | Petroleum Bulk Terminals | 0 lbs | 9 |
| 68 | Truenorth Steel | Billings | Fabricated Metals | 0 lbs | 1 |
| 69 | Westfeeds - Billings Premix | Billings | Food | 0 lbs | 2 |
| 70 | Western Powders Inc / Hodgdon Powder Co. | Miles City | Chemical Wholesalers | 0 lbs | 1 |
| 71 | Chs Great Falls Feed | Great Falls | Food | 0 lbs | 3 |
| 72 | Boeing Helena Inc | Helena | Transportation Equipment | 0 lbs | 2 |
| 73 | Marks-Miller Post & Pole Inc | Clancy | Wood Products | 0 lbs | 2 |
| 74 | Johns Manville-Belgrade Plant | Belgrade | Plastics and Rubber | 0 lbs | 2 |
| 75 | Weyerhaeuser Nr | Kalispell | Wood Products | 0 lbs | 1 |
| 76 | Cityservicevalcon LLC South Plant Bulk Facility | Kalispell | Petroleum Bulk Terminals | 0 lbs | 1 |
| 77 | US Dod Usaf 120 Aw Montana Ang (range) | Great Falls | Other | 0 lbs | 1 |
| 78 | Big Hole National Battlefield | Wisdom | Other | 0 lbs | 1 |
| 79 | Ergon Asphalt & Emulsions Inc. - Butte | Butte | Petroleum | 0 lbs | 3 |