| Martin Marietta Materials, Inc. | 244 | 2,802 |
| Vulcan Construction Materials, LLC | 224 | 3,691 |
| Rogers Group Inc. | 114 | 839 |
| Rosebud Mining Company | 96 | 802 |
| Consolidation Coal Company | 94 | 9 |
| Peabody Coal Company | 83 | — |
| Heidelberg Materials Northeast LLC | 71 | 673 |
| Granite Construction Company | 63 | 208 |
| Island Creek Coal Company | 60 | 60 |
| Nally & Hamilton Enterprises Inc | 57 | 152 |
| Paramont Coal Corp | 54 | 159 |
| General Shale Brick, Inc. | 52 | 81 |
| Westmoreland Coal Company | 51 | 452 |
| Clinchfield Coal Company | 48 | 347 |
| CalMat Co | 46 | 570 |
| Martin County Coal Corp | 45 | — |
| Pike Industries Inc | 44 | 136 |
| Heidelberg Materials Midwest Agg, Inc. | 43 | 696 |
| Croell, Inc. | 42 | 103 |
| CEMEX Construction Materials South LLC | 40 | 359 |
| Revelation Energy, LLC | 40 | — |
| Dominion Coal Corporation | 39 | 93 |
| Milestone Materials Div/Mathy Construction Co | 39 | 100 |
| Knife River Corporation-Northwest | 38 | 192 |
| Lexington Coal Company, LLC | 37 | 70 |
| Staker & Parson Companies | 37 | 160 |
| Wendling Quarries, Inc. | 37 | 104 |
| Martin Marietta Materials | 36 | 267 |
| Oldcastle SW Group, Inc. | 36 | 136 |
| Hallett Materials | 35 | 38 |
| New Enterprise Stone & Lime Co., Inc. | 35 | 393 |
| Fisher Sand & Gravel Company | 34 | 134 |
| Premier Elkhorn Coal Company | 34 | — |
| Rockwell Mining LLC | 32 | 461 |
| MICHELS ROAD & STONE, INC | 31 | 84 |
| Consol Of Kentucky Inc | 30 | 106 |
| Glenn O Hawbaker Inc | 30 | 115 |
| B & H Coal Company Inc | 29 | 6 |
| Brooks Run Mining Company LLC | 29 | — |
| Drummond Company, Inc. | 29 | 13 |
| Meshoppen Stone Inc | 29 | 89 |
| SRM Materials, LLC | 29 | 231 |
| Shelly Materials Inc | 29 | 199 |
| Addington Inc | 28 | — |
| Goldens Creek Enterprises Inc | 28 | 12 |
| IMI Aggregates LLC | 28 | 281 |
| Martin Marietta Materials Southwest, LLC | 28 | 716 |
| Paramont Coal Company Virginia, LLC | 28 | — |
| Black Hawk Mining Inc | 27 | — |
| Bundy Auger Mining Inc | 27 | 5 |
| Locust Grove Inc | 27 | — |
| Bluegrass Materials Company, LLC | 26 | 329 |
| Cold Spring Granite Company | 26 | 108 |
| Vulcan Construction Materials, L.P. | 26 | — |
| APAC-Central, Inc | 25 | 121 |
| Bruening Rock Products Inc | 25 | 86 |
| CEMEX Construction Materials Florida, LLC | 25 | 662 |
| Central Stone Company | 25 | 233 |
| Knife River Corporation North Central | 25 | 55 |
| L.G. Everist, Inc. | 25 | 177 |
| Luck Stone Corporation | 25 | 377 |
| Suncore Construction and Materials Inc. | 25 | 91 |
| Amerikohl Mining Inc | 24 | — |
| CalPortland Company | 24 | 467 |
| Florida Rock Industries Inc | 24 | 224 |
| Heidelberg Materials Southeast Agg., LLC | 24 | 504 |
| Stear Auger Mining Inc | 24 | — |
| Wellmore Coal Corp | 24 | 12 |
| Acme Brick Company | 23 | 57 |
| Alden Resources LLC | 23 | — |
| CAM Mining LLC | 23 | — |
| Clintwood JOD, LLC | 23 | 97 |
| Green Hill Mining Inc | 23 | 2 |
| Hi-Wall Mining Contractors Inc | 23 | 19 |
| Mc Coy Elkhorn Coal Corp | 23 | 30 |
| Nevada Gold Mines LLC | 23 | 7,024 |
| Ramaco Resources, LLC | 23 | 715 |
| Vulcan Constr. Materials, L.P. | 23 | — |
| Eagle Coal Company Inc | 22 | 51 |
| Elk Run Coal Company Inc | 22 | — |
| Elmer's Crane and Dozer, Inc. | 22 | 26 |
| Jeddo-Highland Coal Company | 22 | — |
| Long Branch Energy | 22 | — |
| Surface Minerals Company | 22 | 14 |
| U.S. Silica Company, LLC | 22 | 900 |
| Valley Mining, Inc. | 22 | — |
| Eastern Associated Coal Corp | 21 | — |
| Leckie Smokeless Coal Company | 21 | — |
| Manalapan Mining Company Inc | 21 | — |
| Mountain Fuels Inc. | 21 | 7 |
| Pennsy Supply Inc | 21 | 212 |
| Reading Anthracite Company | 21 | 149 |
| Arcosa Aggregates Texas, LLC | 20 | 137 |
| B&W Resources Inc. | 20 | 93 |
| Coal-Mac LLC | 20 | 345 |
| Eurovia Atlantic Coast LLC | 20 | 44 |
| Payne & Dolan Inc | 20 | 95 |
| Peabody Midwest Mining, LLC | 20 | 271 |
| Simon Contractors | 20 | 44 |
| American Materials Company LLC | 19 | 56 |
| Amrize Midwest Inc. | 19 | 145 |
| Amrize West Central Inc. | 19 | 152 |
| Golden Oak Mining Company Inc | 19 | — |
| Marfork Coal Company Inc | 19 | — |
| Martin Marietta Southeast Agg Operations, LLC | 19 | 204 |
| Yahara Materials Inc | 19 | 55 |
| BMC Aggregates LC | 18 | 75 |
| Banner Blue Coal Company | 18 | 7 |
| Barrett Paving Materials Inc | 18 | 100 |
| Costain Coal Inc | 18 | — |
| Covia Solutions LLC | 18 | 444 |
| D F M Inc | 18 | 34 |
| Dolese Bros Co | 18 | 334 |
| Frasure Creek Mining LLC | 18 | — |
| Southern Appalachian Coal Company | 18 | — |
| VCNA Prairie LLC | 18 | 60 |
| Alabama Land & Mineral Corp | 17 | 42 |
| Elkay Mining Company | 17 | — |
| H.E. Hunewill Construction Co.,Inc. | 17 | 43 |
| Knife River North Central | 17 | 17 |
| Leeco Inc | 17 | 34 |
| Mega Highwall Mining, LLC | 17 | 89 |
| Oxford Mining Co LLC | 17 | — |
| Sargent Corporation | 17 | 28 |
| Stoneco Inc | 17 | 148 |
| Tilcon New York Inc | 17 | 349 |
| Trinity Materials Inc | 17 | — |
| Ulland Brothers, Inc. | 17 | 50 |
| Winn Construction Company Inc | 17 | — |
| A & G Coal Corporation | 16 | 35 |
| Amrize Mid-America Inc. | 16 | 341 |
| Barnhill Contracting Company | 16 | 5 |
| Capital Sand Company, Inc. | 16 | 50 |
| Glen-Gery Corporation | 16 | 14 |
| Holliday Sand & Gravel | 16 | 43 |
| Iron Eagle Land Rehabilitation, LLC | 16 | 12 |
| J R Vinagro Corporation | 16 | 76 |
| Jobe Materials LP | 16 | 90 |
| Ligon Preparation Company | 16 | — |
| MCC, Inc. | 16 | 30 |
| Motivation Coal Company | 16 | 11 |
| Mountain Edge Mining Inc | 16 | — |
| Northeast Asphalt Inc | 16 | 35 |
| P A Landers Inc | 16 | 43 |
| Panther Creek Mining LLC | 16 | 507 |
| RiverBend Materials | 16 | 94 |
| RoxCoal, Inc. | 16 | — |
| Shamrock Coal Company Inc | 16 | — |
| South Texas Aggregates Inc | 16 | 23 |
| W C A Inc | 16 | 6 |
| Whitaker Coal Corp | 16 | — |
| Arch Of West Virginia | 15 | — |
| Beth Energy Mines Inc | 15 | — |
| CEMEX Construction Materials Pacific, LLC | 15 | 372 |
| Cannelton Industries Inc | 15 | — |
| ERP Environmental Fund Inc. | 15 | 2 |
| Golden Oak Mining Company L P | 15 | 178 |
| Greenbrier Minerals, LLC | 15 | 664 |
| Haas Sons Inc | 15 | 37 |
| Heidelberg Materials Southwest LLC | 15 | 404 |
| Ikerd-Bandy Company Inc | 15 | 10 |
| Kentucky Fuel Corporation | 15 | 8 |
| McCullough Crushing Inc | 15 | 30 |
| Mellott Company | 15 | 3 |
| Mulzer Crushed Stone Inc | 15 | 330 |
| North Star Contractors Inc | 15 | — |
| Pine Branch Mining LLC | 15 | 107 |
| Pittsburg & Midway Coal Mining Company | 15 | — |
| Sea B Mining Company | 15 | 18 |
| Seward Sand & Gravel Inc. | 15 | 9 |
| Sunny Ridge Mining Company Inc | 15 | 33 |
| AEP Kentucky Coal, L. L. C. | 14 | — |
| Aggregate Resources, Inc. | 14 | 49 |
| Bluegrass Natural Resources, LLC | 14 | 392 |
| Buechel Stone Corp | 14 | 224 |
| CCU Coal and Construction LLC | 14 | 54 |
| Capital Materials, LLC | 14 | 63 |
| Coal Mac Inc | 14 | 2 |
| Continental Augering Inc | 14 | — |
| Cornejo & Sons LLC | 14 | 87 |
| Doverspike Brothers Coal Company | 14 | 1 |
| Enterprise Mining Company LLC | 14 | — |
| F. S. Lopke Contracting, Inc. | 14 | 45 |
| Georgia Stone Management LLC | 14 | 27 |
| Greenbrier Smokeless Coal Mining LLC | 14 | 90 |
| H&K Group, Inc. | 14 | 157 |
| Hinkle Contracting Company LLC | 14 | 81 |
| Las Vegas Paving Corp | 14 | 76 |
| Michigan Materials and Aggregates Company | 14 | 136 |
| Mid-States Materials, LLC | 14 | 98 |
| Miller Brothers Coal Inc | 14 | 105 |
| New Horizons Coal Inc | 14 | — |
| Northwest Rock Inc | 14 | 14 |
| Permian Basin Materials, LLC | 14 | 49 |
| Peters Concrete Company | 14 | 23 |
| Premium Coal Company Inc | 14 | 2 |
| Schildberg Construction Company Inc | 14 | 93 |
| Teichert Aggregates | 14 | 182 |
| Terry Eagle Coal Company Llc | 14 | — |
| Valley Camp Coal Company | 14 | — |
| A & G Coal Corp | 13 | — |
| A. Lindberg & Sons, Inc. | 13 | 28 |
| AMFIRE Mining Company, LLC | 13 | — |
| Addington Enterprises Inc | 13 | 19 |
| Amrize Cement Inc. | 13 | 1,861 |
| Arcosa Aggregates Gulf Coast, LLC | 13 | 140 |
| Beltrami Enterprises Inc | 13 | — |
| Birmingham Coal & Coke Company Inc | 13 | — |
| Branham & Baker Coal Company Inc | 13 | 31 |
| C A M Company | 13 | — |
| Carter Roag Coal Company | 13 | 2 |
| Coastal Coal-West Virginia Llc | 13 | — |
| Duininck, Inc. | 13 | 21 |
| Independence Coal Company Inc | 13 | — |
| LCC Kentucky LLC | 13 | — |
| Luminant Mining Company LLC | 13 | 334 |
| Marfork Coal Company, LLC | 13 | 490 |
| Mining Technologies Inc | 13 | — |
| Neiswonger Construction Inc | 13 | 34 |
| Northstar Materials Inc dba Knife River Materials | 13 | 24 |
| Paramont Contura, LLC | 13 | 659 |
| Paulsen Inc | 13 | 30 |
| Perry & Hylton Inc | 13 | — |
| Royal Coal Company | 13 | — |
| Shaw Brothers Construction, Inc. | 13 | 27 |
| Sustainable Land Use, LLC | 13 | 98 |
| The National Lime & Stone Company | 13 | 207 |
| Tilcon Connecticut Inc | 13 | 77 |
| United Materials, LLP | 13 | 34 |
| United Minerals Company Llc | 13 | 19 |
| United States Steel Mining Company Inc | 13 | — |
| Weslo Inc | 13 | — |
| APAC-MS, INC. | 12 | 99 |
| Addington Mining Inc | 12 | — |
| Ames Construction Inc | 12 | 36 |
| Apac-Kansas Inc Shears Division | 12 | 17 |
| Associated Contracting LLC | 12 | — |
| B & B Coal Company | 12 | — |
| BARD Materials | 12 | 25 |
| BlueBird Stone | 12 | 27 |
| CSA Materials, Inc. | 12 | 54 |
| Carbon River Coal Corp | 12 | 2 |
| Cedar Coal Company | 12 | — |
| Coastal Coal Company, LLC | 12 | 5 |
| Cravat Coal Coal Company Inc | 12 | — |
| DelHur Industries, Inc. | 12 | 28 |
| Dolomite Group | 12 | 91 |
| Douds Stone LLC | 12 | 43 |
| Geneva Rock Products Inc | 12 | 132 |
| Johnson Quarries Inc | 12 | 17 |
| KNOTT COUNTY COAL LLC | 12 | 2 |
| KaMin LLC | 12 | 676 |
| Kilgore Contracting | 12 | 51 |
| Lambert Coal Company Inc | 12 | 36 |
| Laredo Paving Inc | 12 | 6 |
| Lodestar Energy Inc | 12 | 29 |
| Mammoth Coal Co. | 12 | — |
| Meade & Shepherd Coal Company Inc | 12 | 23 |
| Mellott Company LLC | 12 | 15 |
| Miles Sand & Gravel Company | 12 | 52 |
| Mountainside Coal Company Inc | 12 | 1 |
| Nu East Mining Corp | 12 | — |
| Peckham Materials Corp | 12 | 67 |
| Peter White Coal Mining Corp | 12 | — |
| Pocahontas Coal Company LLC | 12 | 288 |
| ROCK-IT NATURAL STONE, INC. | 12 | 88 |
| Rb Coal Company Inc | 12 | — |
| Robertson's | 12 | 144 |
| Robinson-Phillips Coal Company Inc | 12 | — |
| SIDWELL MATERIALS INC | 12 | 30 |
| Silverbrook Anthracite Inc | 12 | 7 |
| Steven R Mullins Excavating Inc | 12 | 76 |
| Strata Corp | 12 | 39 |
| The National Lime and Stone Company | 12 | 36 |
| US Aggregates LLC | 12 | 129 |
| Virginia Fuel Corporation | 12 | — |
| Waste Management & Processors Inc | 12 | 71 |
| ACG Materials | 11 | — |
| Allegheny Mineral Corp | 11 | 123 |
| Alleyton Resource Company, LLC. | 11 | 97 |
| Amrize Mid-Atlantic Inc. | 11 | 191 |
| Andalex Resources Inc | 11 | — |
| Appalachian Aggregates, LLC | 11 | 155 |
| Appolo Fuels Inc | 11 | — |
| B & M Coal Company | 11 | 11 |
| BC Materials, LLC | 11 | 47 |
| Blue Diamond Coal Company | 11 | 32 |
| Bow Valley Coal Resources Inc | 11 | — |
| Buffalo Mining Company | 11 | — |
| Camellia Met Mining, LLC | 11 | 3 |
| Capitol Aggregates, Inc. | 11 | 205 |
| Carl Schlegel Inc | 11 | 25 |
| Coalburg Enterprises Inc | 11 | — |
| Farrell-Cooper Mining Company | 11 | — |
| G Lopes Construction Inc | 11 | 8 |
| HM Pacific Northwest, Inc. | 11 | 87 |
| Hannco Energy Inc | 11 | 7 |
| Har-Lee Coal Company Inc | 11 | 50 |
| Hickory Hill Development Corp | 11 | — |
| J. Jadin, Inc. | 11 | 20 |
| Jaco Mining Company Inc | 11 | — |
| James River Coal Service Company | 11 | — |
| Jumacris Mining Inc | 11 | — |
| Kentucky-Tennessee Clay Company | 11 | 162 |
| Labco, LLC | 11 | — |
| Maplewood Mining Company Inc | 11 | — |
| Melvin Stone Company LLC | 11 | 57 |
| New Enterprise Stone and Lime Co., Inc. | 11 | 85 |
| Old Ben Coal Company | 11 | — |
| P B Dirt Movers Inc | 11 | 15 |
| Pilgrim Mining Company Inc | 11 | 34 |
| Pitlik & Wick, Inc. | 11 | 16 |
| Rawson Materials | 11 | 53 |
| RiverStone Group Inc | 11 | 68 |
| Robert Clear Coal Corporation | 11 | — |
| Royal Scot Minerals Inc | 11 | — |
| S. T. Wooten Corporation | 11 | 2 |
| South-East Coal Company Inc | 11 | — |
| Split Vein Coal Company Inc | 11 | — |
| Superior Ready Mix Concrete L.P. | 11 | 39 |
| Superstition Crushing LLC | 11 | 42 |
| U.S. Silica Company | 11 | 220 |
| US Aggregates Inc | 11 | 47 |
| Wm. D. Scepaniak Inc | 11 | 26 |
| Wm. Mueller & Sons, Inc. | 11 | 26 |
| APAC Kansas Inc | 10 | 29 |
| Abston Construction Company Inc | 10 | 14 |
| Active Resources, Inc. | 10 | 33 |
| Aggregate Industries | 10 | 8 |
| Appalachian Mining Inc | 10 | — |
| Arcosa Aggregates West, LLC. | 10 | 43 |
| Asphalt Specialties Co., Inc. | 10 | 18 |
| BJ Rees's Enterprise | 10 | 33 |
| Barton Sand & Gravel Co | 10 | 50 |
| Bell County Coal Corp | 10 | — |
| Bizwil Inc | 10 | — |
| Black Warrior Minerals Inc | 10 | 66 |
| Branham & Baker Underground Corp | 10 | — |
| Buzzi Unicem USA | 10 | 913 |
| C J Moyna & Sons LLC. | 10 | 25 |
| Carder Inc | 10 | — |
| Cemstone Products Company | 10 | 21 |
| Cumberland Coal Corporation | 10 | 29 |
| ENDLESS MOUNTAIN MINERALS, LLC | 10 | 15 |
| Elk Run Coal Company, LLC | 10 | 17 |
| Extra Energy, Inc. | 10 | 254 |
| Georgia-Pacific Gypsum LLC | 10 | 46 |
| Granite Construction Co | 10 | 18 |
| Gravel Products Inc | 10 | 29 |
| Green Coal Company Inc | 10 | — |
| H & H Coal Company | 10 | — |
| Hanson Aggregates Midwest, LLC | 10 | — |
| Harlan Fuel Company | 10 | — |
| Heritage Coal & Natural Resources LLC | 10 | — |
| Holbrook Mining Company Inc | 10 | — |
| I A Construction Corp | 10 | 8 |
| Idaho Materials & Construction | 10 | 7 |
| J & B Coal Company | 10 | 5 |
| J & H Coal Company | 10 | — |
| Jeffco Mining | 10 | — |
| Jericol Mining Inc | 10 | — |
| K-Jac Energy Inc | 10 | — |
| Kernen Construction | 10 | 18 |
| Keystone Coal Mining Corp | 10 | — |
| L R Falk Construction Company | 10 | 29 |
| Laurel Coal Corp | 10 | — |
| Little Hackney Creek Coal Company | 10 | — |
| Memphis Stone & Gravel Company | 10 | 46 |
| NM ENERGY LLC | 10 | 47 |
| New Acton Coal Mining Company Inc | 10 | 2 |
| O & G INDUSTRIES INC | 10 | 42 |
| Old Dominion Energy Inc | 10 | 12 |
| Pagnotti Enterprises, Inc. | 10 | 12 |
| Ridgetop Mining Inc | 10 | 8 |
| Rieth-Riley Construction Co., Inc. | 10 | 33 |
| River Processing Inc | 10 | — |
| Rossi Excavating Company | 10 | 5 |
| S & S Aggregate | 10 | 42 |
| S & S Auger Mining | 10 | — |
| Salt River Sand & Rock | 10 | 46 |
| Sidney Coal Company Inc | 10 | — |
| Slab Fork Coal Company | 10 | — |
| Sunrise Coal, LLC | 10 | 482 |
| Tennco, Inc. | 10 | — |
| Triad Mining Inc | 10 | — |
| Virginia Crews Coal Company | 10 | — |
| W. W. Clyde & Co. | 10 | 23 |
| Warrior Coal Llc | 10 | 462 |
| Western Rock Products | 10 | 11 |
| A & R Coal Corp | 9 | — |
| A A & W Coals Inc | 9 | — |
| Alpine Construction Corp | 9 | — |
| American Rock Products Inc | 9 | 19 |
| Apex Coal Corp | 9 | — |
| Apex Mining Inc | 9 | — |
| Arch Of Illinois | 9 | — |
| Argus Energy WV LLC | 9 | 1 |
| Ash Grove Cement Company | 9 | 845 |
| Bethlehem Mines Corp | 9 | — |
| Bledsoe Coal Corp | 9 | — |
| Bluff City Materials, Inc. | 9 | 3 |
| Brock Mining Inc | 9 | — |
| C & H Mining Company Inc | 9 | — |
| Callanan Industries Inc | 9 | 42 |
| Capricorn Coal Company Inc | 9 | — |
| Carbonex Coal Company | 9 | — |
| Casella Construction Inc | 9 | 9 |
| Cemstone Ready Mix | 9 | 13 |
| Charolais Corp | 9 | — |
| Cimbar Resources, Inc | 9 | 243 |
| Coal-Mac MET, LLC | 9 | 176 |
| Collins & May Mining Company Inc | 9 | — |
| Continental Coal Inc | 9 | 5 |
| Contract Highwall Mining, LLC | 9 | 28 |
| Cougar Coal Company Inc | 9 | 55 |
| Crossfire Aggregate Services, LLC | 9 | 14 |
| Eastern Associated Coal LLC | 9 | — |
| Elam Sand and Gravel | 9 | 24 |
| Eureka Stone Quarry Inc | 9 | 92 |
| FR Performance LLC | 9 | — |
| Falcon Coal Company Inc | 9 | — |
| Fred Weber Inc | 9 | 1 |
| Gagliarducci Construction, Inc. | 9 | 3 |
| Gerken Materials Inc. | 9 | 36 |
| Gernatt Asphalt Products, Inc. | 9 | 25 |
| Goodfellow Bros. LLC | 9 | 6 |
| Green Mountain Energy Inc | 9 | — |
| Halliday Sand & Gravel Inc | 9 | 23 |
| Halquist Stone Company Inc | 9 | 87 |
| Hanson Aggregates New York Inc. | 9 | — |
| Harlan-Bell Coal Inc | 9 | — |
| Heidelberg Materials US Cement LLC | 9 | 866 |
| Higman Sand & Gravel Inc | 9 | — |
| Horizon Coal Corp | 9 | — |
| Imperial Colliery Company | 9 | — |
| Integrity Material Sales Inc | 9 | 9 |
| Island Fork Construction Ltd | 9 | — |
| J & R Coal Company | 9 | — |
| Joy Engineering | 9 | 31 |
| Kenerco Corp | 9 | — |
| Kentucky May Coal Company Inc | 9 | 9 |
| Kitchekan Fuel Corp | 9 | — |
| Knife River | 9 | 22 |
| Knight Hawk Coal, LLC | 9 | 327 |
| Knox Creek Coal Corp | 9 | 13 |
| Kyn Coal Company Inc | 9 | 31 |
| La Rosa Fuel Company Inc | 9 | — |
| Landmark Mining Company Inc | 9 | — |
| Majestic Mining Inc | 9 | — |
| Manning Coal Corp | 9 | 118 |
| Martin Marietta Northern California Aggregates,LLC | 9 | 75 |
| Milestone Materials Division Mathy Construction | 9 | 26 |
| Monarch Mountain Minerals & Aggregates, LLC | 9 | 37 |
| National Coal Corporation | 9 | — |
| OnCore Processing LLC | 9 | 144 |
| Oswego County Highway Department | 9 | 3 |
| P & N Coal Company Inc | 9 | — |
| Pete Lien & Sons Inc | 9 | 173 |
| RES Coal LLC | 9 | 116 |
| Red Dog Coal Corp | 9 | 15 |
| Roblee Coal Company | 9 | — |
| Silvara Stone Co., LLC | 9 | 18 |
| Star Stone Quarries Inc | 9 | 27 |
| Stone Mining Company | 9 | — |
| Strata Corporation | 9 | 33 |
| TXI Operations LP | 9 | — |
| Todd's Redi-Mix Concrete LLC | 9 | 13 |
| Tompkins Bluestone Co., Inc. | 9 | — |
| Union Carbide Corp-Metals Division | 9 | — |
| Watson Gravel Inc | 9 | 33 |
| Weber Sand & Gravel, Inc. | 9 | 18 |
| Zielinski Construction Corp | 9 | — |
| ARKHOLA | 8 | 71 |
| Addwest Mining Inc | 8 | — |
| Alliance Materials, Inc. | 8 | 13 |
| Alpine Silica, LLC | 8 | 378 |
| Amber Coal Company Inc | 8 | — |
| American Aggregates Of Michigan Inc | 8 | 45 |
| American Colloid Company | 8 | 215 |
| Arcosa Specialty Materials | 8 | 67 |
| B & D Coal Company | 8 | — |
| B & G MATERIALS, LLC | 8 | 11 |
| B & J Backhoe Service Inc | 8 | — |
| B & J Coal Company | 8 | — |
| BURRELL'S EXCAVATING INC. | 8 | 10 |
| Banner Coal & Land Company | 8 | — |
| Belva Coal Company Inc | 8 | — |
| Betty B Coal Company Inc | 8 | 56 |
| Big Elk Creek Coal Company Inc | 8 | — |
| Blackjewel L.L.C. | 8 | — |
| Brumfield Construction, Inc. | 8 | 12 |
| C & H Coal Company Inc | 8 | — |
| C & S Coal Company | 8 | 6 |
| CLARK COMPANIES | 8 | 7 |
| CalPortland | 8 | 295 |
| Calvary Coal Company Inc | 8 | 24 |
| Carbon Fuel Company | 8 | — |
| Carbon Seam Systems Inc | 8 | — |
| Carmeuse Lime Inc | 8 | 126 |
| Central Specialties Inc | 8 | 18 |
| Civil, LLC | 8 | 5 |
| Clifford Aggregate Incorporated | 8 | 24 |
| Cloverfork Mining & Excavating Inc | 8 | — |
| Coal Augering Inc | 8 | — |
| Coal Cave Inc | 8 | — |
| Coal River Mining LLC | 8 | — |
| Cornerstone Crushing LLC | 8 | 21 |
| Couch Aggregates LLC | 8 | 46 |
| County Materials Corp | 8 | 22 |
| Day Branch Coal Company Inc | 8 | — |
| Duffek Sand & Gravel Inc | 8 | — |
| Elkhart County Gravel Inc | 8 | 30 |
| Espinoza Stone Inc. | 8 | 42 |
| FAY & WRIGHT EXCAVATING INC | 8 | 22 |
| FNF Construction Inc | 8 | 43 |
| Foley Materials Company | 8 | 14 |
| GCC Sun City Materials LLC | 8 | 117 |
| Gatliff Coal Company Inc | 8 | — |
| Gerke Excavating Inc | 8 | 20 |
| Great Western Coal Inc | 8 | — |
| Harriman Coal Corp | 8 | — |
| Hawks Nest Mining Company | 8 | — |
| Hawley Coal Mining Corp | 8 | — |
| Heidelberg Materials Northeast-NY LLC | 8 | 36 |
| Hepburnia Coal Company Inc | 8 | — |
| Hickory Resources Partnership | 8 | — |
| High Grade Materials Co | 8 | 19 |
| Humphreys Enterprises Inc | 8 | 10 |
| ICG Hazard, LLC | 8 | — |
| Imerys Carbonates USA, INC | 8 | 473 |
| J & J Coal Company Inc | 8 | 19 |
| JTL GROUP,INC. | 8 | 31 |
| Jake Barbour, Inc. | 8 | 14 |
| Jerritt Canyon Gold LLC | 8 | 48 |
| Kent Coal Mining Company | 8 | — |
| Kingdom Gravel & Aggregate Inc | 8 | 11 |
| Koch Carbon Inc | 8 | 6 |
| Kodiak Mining Company | 8 | 25 |
| Kopper Glo Mining, LLC | 8 | — |
| Laurel Run Mining Company | 8 | — |
| Lebo Mining Inc | 8 | 48 |
| Lopke Quarries, Inc. | 8 | 14 |
| Mays Mining, Inc. | 8 | 28 |
| Midsouth Aggregates | 8 | 94 |
| Miller Bros Coal LLC | 8 | — |
| Mountain Spring Coal Company | 8 | — |
| National Mines Corp | 8 | — |
| North American Coal Corp | 8 | — |
| Nuvemco LLC | 8 | — |
| Omar Mining Company | 8 | — |
| Onyx Energy, LLC | 8 | 71 |
| Patriot Mining Company Inc | 8 | — |
| Peak Sand & Gravel Inc | 8 | 36 |
| Peerless Eagle Coal Company | 8 | — |
| Peter Fork Mining Company | 8 | — |
| Pickens Coal Inc | 8 | 10 |
| Pine Creek Mining Inc | 8 | — |
| Potter Mining Company Inc | 8 | — |
| Presby Construction Inc. | 8 | 13 |
| Preston Energy Inc | 8 | — |
| Progressive Contracting, Inc | 8 | 27 |
| R E Glancy Inc | 8 | 13 |
| R V Mining Company Inc | 8 | — |
| RAFFERTY SAND & GRAVEL LLC | 8 | 10 |
| Raw Coal Mining Company, Inc. | 8 | 41 |
| Rawl Sales & Processing Company | 8 | — |
| Ray Coal Company | 8 | 15 |
| Rock-It Natural Stone | 8 | 20 |
| Rockhouse Creek Development Corp | 8 | — |
| Ronnie Duffield Gravel Company | 8 | 55 |
| Ruby Coal Company | 8 | — |
| S & H Mining Inc | 8 | — |
| Sand Mountain Minerals Inc | 8 | — |
| Scotty's Contracting & Stone, LLC | 8 | 66 |
| Skagit Aggregates LLC | 8 | 16 |
| Smoky Quartz | 8 | 1 |
| Southern MN Construction | 8 | — |
| Spartan Mining Company, LLC | 8 | 345 |
| Standard Gravel Company Inc | 8 | 10 |
| Stoney Coal Company | 8 | — |
| T P Mining Inc | 8 | — |
| The Olen Corporation | 8 | 67 |
| Thompson Materials | 8 | 17 |
| United States Gypsum Company | 8 | 228 |
| Upstone Materials Inc. | 8 | 26 |
| Valley Coal Company | 8 | — |
| Vanderbilt Minerals LLC | 8 | 38 |
| Viking Coal Company Inc | 8 | — |
| Vindex Energy LLC | 8 | — |
| Viper Coal LLC | 8 | — |
| War Eagle Construction Company Inc | 8 | — |
| West Texas Rock Resources, LLC | 8 | 13 |
| Wiregrass Construction Co., Inc. | 8 | 37 |
| Wolf Run Mining LLC | 8 | 328 |
| 4TH GEN FUELS, LLC. | 7 | 70 |
| ACA Products Inc | 7 | 21 |
| Addington Brothers Mining Inc | 7 | — |
| Aggregate Construction Inc | 7 | — |
| Alamo Concrete Products Company | 7 | 64 |
| Alley-Cassetty Coal Company Inc | 7 | 2 |
| American Rock Products | 7 | 26 |
| Amigo Smokeless Coal Company | 7 | — |
| Anco Mining Inc | 7 | — |
| Apac-Missouri Inc | 7 | — |
| Aracoma Coal Company, LLC | 7 | 232 |
| Atlantic Carbon Group, Inc. | 7 | 86 |
| Avery Coal Company Inc | 7 | — |
| B & C Mining Inc | 7 | — |
| B & H Coal Co Inc | 7 | — |
| B & W Coal Company | 7 | 8 |
| BURNCO Colorado LLC | 7 | 24 |
| Badgerland Aggregates, LLC | 7 | 15 |
| Banner Company | 7 | — |
| Barber Creek Sand & Gravel Inc | 7 | 10 |
| Barnette Contractors | 7 | 46 |
| Beech Fork Processing Inc | 7 | — |
| Berry Mountain Mining Company Inc | 7 | — |
| Beverly Materials LLC | 7 | 8 |
| Black Diamond Company | 7 | 4 |
| Black Jack Coal Company | 7 | — |
| Boral Bricks Inc | 7 | — |
| Brannt-Valley Excavating | 7 | 3 |
| Bright Coal Company Inc | 7 | — |
| Brimhall Sand Rock & Building Materials | 7 | 23 |
| Burroughs Materials Corp | 7 | 42 |
| C & D Coal Company | 7 | — |
| C & H Coal Company | 7 | — |
| C & K Coal Company Inc | 7 | 31 |
| Canyon Fuel Company Llc | 7 | 835 |
| Capital Quarries Company Inc | 7 | 32 |
| Carmeuse Lime and Stone Inc | 7 | 379 |
| Carolina Sand Inc | 7 | 5 |
| Cliffco Enterprise Inc | 7 | — |
| Coal Loaders Inc | 7 | 24 |
| Cobra Mining Inc | 7 | 28 |
| Comanche Coal Corp | 7 | 27 |
| Commonwealth Mining, LLC | 7 | 6 |
| Conmat Inc., dba Helm Materials | 7 | 13 |
| Conners Crushed Stone | 7 | 18 |
| Coresco LLC | 7 | — |
| Cumberland River Coal Company | 7 | — |
| D & A Coal Company Inc | 7 | — |
| D & B Coal Company Inc | 7 | — |
| D & D Coal Company | 7 | — |
| Debra Lynn Coals Inc | 7 | — |
| Donaho Stone LLC | 7 | 19 |
| Doug Coal Company | 7 | 1 |
| E E & S Auger Mining Inc | 7 | — |
| Eastern Coal Company | 7 | 30 |
| Elm Coal Corp | 7 | — |
| Energy Supply Inc | 7 | 40 |
| Far South Mining LLC | 7 | 18 |
| Farden Construction Inc | 7 | 9 |
| Ferroglobe USA Mining, LLC | 7 | 74 |
| Fisher Sand & Gravel Co | 7 | 40 |
| Florence Mining Company | 7 | — |
| G L R Mining Inc | 7 | — |
| Georgia Stone Products, LLC | 7 | 62 |
| Grafton Coal Company | 7 | — |
| H & B Crushing LLC | 7 | 25 |
| Haley Brothers & Partridge Coal Inc | 7 | 21 |
| Hanson Aggregates | 7 | — |
| Hanson Aggregates BMC, Inc | 7 | — |
| Hard Rock Sand & Gravel LLC | 7 | — |
| Harshman Construction L.L.C. | 7 | 40 |
| Haynes Materials Company | 7 | 12 |
| Helvetia Coal Company | 7 | — |
| Hite Preparation Company | 7 | — |
| Hobet Mining Inc | 7 | — |
| Hoke Company Inc | 7 | — |
| Holtmeier Construction Inc | 7 | 3 |
| Howard Neal Coal Corp | 7 | — |
| Huey P Stockstill LLC | 7 | 24 |
| Husky Coal Company Inc | 7 | — |
| Imperial Products Supply, LLC | 7 | 57 |
| Independence Excavating, Inc. | 7 | 25 |
| Interstate Rock Products Inc | 7 | 15 |
| Ison Coal Company Inc | 7 | 25 |
| J L Storedahl & Sons Inc | 7 | 19 |
| J Lee Milligan Inc | 7 | 45 |
| JRC Mining, Inc. | 7 | 5 |
| Jasper & Jasper Coal Company Inc | 7 | — |
| John B Harris Inc | 7 | — |
| Johnson Sand & Gravel Inc | 7 | 8 |
| Jones Bros Contractors, LLC | 7 | 38 |
| K & M Coal Company Inc | 7 | — |
| Kentucky May Mining | 7 | — |
| Kinney Branch Coal Company Inc | 7 | — |
| Knife River Materials | 7 | 11 |
| L T Ruth Coal Company Inc | 7 | — |
| Lady H Coal Company Inc | 7 | — |
| Lafarge North America Inc | 7 | — |
| Lakeside Industries, Inc | 7 | 16 |
| Lane Construction Corp | 7 | — |
| Lannon Stone Products Inc | 7 | 60 |
| Lena Coal Company | 7 | — |
| Little Beaver Drilling Company | 7 | — |
| Louis Leustek & Sons Inc | 7 | 14 |
| Lowlands Coal Corp | 7 | 20 |
| Lyman-Richey Sand & Gravel Company | 7 | — |
| M & G MINING LLC | 7 | — |
| M & M Coal Company | 7 | 8 |
| MORIAH TFS OPERATIONS LLC dba Thompson Materials | 7 | 4 |
| MRM MINING INC. | 7 | 2 |
| Maben Coal, LLC | 7 | 57 |
| Mayo Resources Inc | 7 | — |
| Mc Cullough Mining Inc | 7 | — |
| Mears Enterprises Inc | 7 | — |
| Mid-Nebraska Aggregate Inc. | 7 | 10 |
| Mill Branch Coal Corporation | 7 | — |
| Minnesota Paving & Materials | 7 | — |
| Montana Mtls & Cons | 7 | 10 |
| Montana Rockworks Inc. | 7 | 24 |
| Mountain Clay Inc | 7 | — |
| Mullins & Sons Coal Company Inc | 7 | — |
| North Star Mining, Inc. | 7 | — |
| Northern Coal Company Inc | 7 | — |
| Nugent Sand Company | 7 | 89 |
| Old Hickory Clay Company | 7 | 50 |
| Oxford Mining | 7 | — |
| Pike Industries | 7 | 15 |
| Powellton Company | 7 | — |
| Premier, LLC | 7 | 21 |
| QAP | 7 | 16 |
| Quality Agg & Construction, Inc | 7 | 13 |
| R & S Coal Company | 7 | — |
| R A C Mining Corp | 7 | — |
| R.S. Services | 7 | 3 |
| Ramaco Resources Land Holdings, LLC | 7 | 44 |
| Ramsey Hill Exploration LLC | 7 | 127 |
| Red River Coal Company Inc | 7 | 22 |
| Rex Coal Company, Inc. | 7 | — |
| River Products Company Inc | 7 | 60 |
| Road and Highway Builders, LLC | 7 | — |
| Robindale Energy Services, Inc. | 7 | 25 |
| Rock Pros USA LLC | 7 | 22 |
| Russell Coal Inc | 7 | 1 |
| Sahara Coal Company Inc | 7 | — |
| Santa Fe Aggregates Inc | 7 | 31 |
| Sextet Mining Corp | 7 | — |
| Simpson Mining Company Inc | 7 | — |
| Skyway Strip, Inc. | 7 | 28 |
| Spallina Materials Inc | 7 | 19 |
| Sterling Smokeless Coal Company | 7 | — |
| Sullivan Brothers Coal Company | 7 | — |
| Superior Silica Sands, LLC | 7 | 19 |
| TROTTER CONSTRUCTION INC | 7 | 10 |
| Tarheel Sand & Stone Inc. | 7 | 29 |
| Taurus Coal Company Inc | 7 | 24 |
| Texas Materials Group, Inc | 7 | 51 |
| Tidewater Contractors, Inc. | 7 | 9 |
| Topper Coal Company Inc | 7 | — |
| Tri-City Aggregates Inc | 7 | 27 |
| Triad Mining LLC | 7 | 2 |
| Triple A Coals Inc | 7 | — |
| Triple E Coal Corp | 7 | 30 |
| United Coals Inc | 7 | — |
| United Dredging | 7 | 10 |
| University Redi-Mix | 7 | 12 |
| Viking Aggregates, Inc. | 7 | 24 |
| WARREN W FANE INC | 7 | 18 |
| Warrior Met Coal Mining, LLC | 7 | 1,095 |
| Whymore Coal Company Inc | 7 | — |
| Wilder Coal Corp | 7 | — |
| Williams Diversified Materials, Inc. | 7 | 7 |
| Wyo-Ben, Inc | 7 | 167 |
| XMV, Inc. | 7 | 5 |
| York Building Products Co Inc | 7 | 111 |
| 101 Coal Inc. | 6 | 105 |
| 7/11 Materials Inc | 6 | 18 |
| A M Welles Inc | 6 | 10 |
| ANDERSON BROTHERS CONSTRUCTION Co of Brainerd LLC | 6 | 8 |
| Adams Construction Co | 6 | 5 |
| Alex Energy Inc | 6 | — |
| Alpine Development Company | 6 | — |
| Amerikohl Mining | 6 | — |
| Amrize Northeast Inc. | 6 | 74 |
| Amrize Southwest Inc. | 6 | 114 |
| Anchor Stone Company | 6 | 66 |
| Apollo Coal Company | 6 | — |
| Appalachian Fuels, LLC | 6 | — |
| Arcosa Aggregates, Inc | 6 | — |
| B B Mining Inc | 6 | 12 |
| B G & M Inc | 6 | — |
| Ballard Brothers Coal Inc | 6 | — |
| Bartley & Bartley Coal Company | 6 | — |
| Basic Energy Services, L.P. | 6 | — |
| Bayer Construction Company, Inc. | 6 | 53 |
| Beaver Creek Coal Company | 6 | — |
| Best Elkhorn Mining Company Inc | 6 | — |
| Big Fork Coal Company Inc | 6 | — |
| Big Horn Redi-Mix Inc | 6 | 12 |
| Black Mountain Resources, LLC | 6 | 1 |
| Black Water, Inc | 6 | 4 |
| Blackfoot Mining Inc | 6 | 5 |
| Blackheart Inc | 6 | — |
| Blaschak Anthracite Corporation | 6 | 129 |
| Bledsoe Coal Corporation | 6 | — |
| Bob'S Branch Coal Company Inc | 6 | 33 |
| Bowes Construction Inc | 6 | 17 |
| Boyd Coal Company Inc | 6 | — |
| Brice Incorporated | 6 | 13 |
| C & C Coal Company | 6 | 3 |
| C & L Coal Company Inc | 6 | — |
| C L S Coal Corp | 6 | — |
| CENTURY AGGREGATES INC | 6 | 26 |
| CHERRY HILL CONSTRUCTION INC | 6 | — |
| Cahaba Resources LLC | 6 | — |
| Caliche Now LLC | 6 | 21 |
| Calico Coal Inc | 6 | — |
| Calvert & Marsh Coal Company Inc | 6 | — |
| Carr Bros & Sons | 6 | 20 |
| Catenary Coal Company | 6 | — |
| Cedar Grove Mining Inc | 6 | — |
| Central Mining Inc | 6 | 35 |
| Central Pre-Mix Concrete Co. | 6 | 6 |
| Clark Elkhorn Coal Company | 6 | — |
| Clas Coal Company Inc | 6 | 50 |
| Clear Creek Coal Company Inc | 6 | — |
| Clear Fork Coal Company | 6 | — |
| Cloe Mining Company Inc | 6 | — |
| Coal Valley Mining Inc | 6 | 26 |
| Colorado Quarries Inc | 6 | 6 |
| Connell Resources Inc | 6 | 16 |
| Consolidated Ready Mix | 6 | 7 |
| Continental Paving Inc | 6 | 37 |
| Corbin Coal Company Inc | 6 | 11 |
| Cow Creek Coal Company Inc | 6 | — |
| Crockett Coal Company Inc | 6 | 99 |
| Crooker Construction, LLC | 6 | 31 |
| D & D Mining Inc | 6 | 7 |
| DENALI ENERGY GROUP LLC | 6 | 2 |
| Darmac Associates Corp | 6 | — |
| Delaware Quarries Inc | 6 | 56 |
| Dendis Sand & Gravel, Inc. | 6 | 4 |
| Devil'S Hole Inc | 6 | — |
| Deweese Sand & Gravel Inc | 6 | 12 |
| Dixie Fuel Company | 6 | — |
| Drake Stone Products Inc | 6 | 21 |
| Dunbar Stone Company Inc | 6 | 11 |
| Earthworks, Inc. | 6 | 107 |
| East Texas Energy Company Inc | 6 | 10 |
| Eastern Coal Corp | 6 | — |
| Eden Stone Co., LLC | 6 | 93 |
| Elk River Sewell Coal Company | 6 | — |
| Ember Contracting Inc | 6 | — |
| Energy Enterprises Inc | 6 | — |
| Evans Coal Corp | 6 | — |
| Falls Creek Energy Company Inc | 6 | — |
| Faulkner Energy Corp | 6 | 6 |
| Fischer Excavating Inc | 6 | 8 |
| Fola Coal Company Llc | 6 | — |
| G & P Contractors Inc | 6 | — |
| Gemco Energies Inc | 6 | — |
| George Reed Inc | 6 | 40 |
| George'S Branch Coal Company Inc | 6 | — |
| Glamorgan Coal Company | 6 | — |
| Glen Irvan Corp | 6 | — |
| Gold Bond Building Products, LLC | 6 | 91 |
| Golden Glow Coals Inc | 6 | — |
| Gorham Sand & Gravel Inc | 6 | 5 |
| Graymont Materials (NY) Inc. | 6 | — |
| Grays Knob Coal Company | 6 | — |
| H & G Construction Company Inc | 6 | — |
| H & T Coal Company | 6 | — |
| H W & C Coal Company Inc | 6 | — |
| Haley Bros. Coal, Inc. | 6 | — |
| Hanson Aggregates LLC | 6 | — |
| Hanson Aggregates Pacific Southwest Inc | 6 | — |
| Hard Rock Coal Company Inc | 6 | 13 |
| Harman Mining Corp | 6 | 6 |
| Harold MacQuinn Inc | 6 | 11 |
| Headache Coal Company Inc | 6 | 7 |
| Highbury Resources Inc. | 6 | — |
| Highland Mining Company | 6 | 7 |
| Holcim (US) Inc | 6 | 155 |
| Holliday Rock Company Inc | 6 | 98 |
| Holliday Sand & Gravel Company, Inc. | 6 | 35 |
| Hull Coal Corp | 6 | — |
| ICG Eastern LLC | 6 | — |
| Indian Creek Coal Company | 6 | — |
| Interstate Concrete & Asphalt Company | 6 | 14 |
| J & D Coal Company Inc | 6 | 5 |
| J J & W Coal | 6 | — |
| Jackson County Mining Corp | 6 | — |
| Jamestown Macadam Inc | 6 | 18 |
| Jarisa Inc | 6 | — |
| Jean Coal Company LLC | 6 | — |
| Jewell Smokeless Coal Corp | 6 | 35 |
| Jones Branch Coal Company Inc | 6 | — |
| Joseph Brothers Inc | 6 | — |
| Justice Highwall Mining, Inc. | 6 | 16 |
| K & B Coal Company | 6 | — |
| Kanawha Coal Company | 6 | — |
| Kentland-Elkhorn Coal Corp | 6 | — |
| Kentucky Harlan Coal Company Inc | 6 | — |
| Kesscoals Inc | 6 | — |
| Kiewit Infrastructure West Co. | 6 | 12 |
| King Powellton Mining Inc | 6 | — |
| Knott Floyd Land Company | 6 | 14 |
| L & L Coal Company | 6 | 2 |
| LCC West Virginia LLC | 6 | — |
| Lake Coal Company Inc | 6 | — |
| Laurel Land Development Inc | 6 | — |
| Leslie Resources Inc | 6 | — |
| Lester Coal Company Inc | 6 | — |
| Lhoist North America of Arizona Inc. | 6 | 320 |
| Liggett Mining LLC | 6 | — |
| Lonesome Pine Energy Company Inc | 6 | 17 |
| Long Fork Development Inc | 6 | 15 |
| Lost Creek Coal Company Inc | 6 | 6 |
| Lost Mountain Mining Company | 6 | — |
| M S & R Equipment Company Inc | 6 | — |
| Mallie Coal Company Inc | 6 | — |
| Maple Leaf Coal Company Inc | 6 | — |
| Marine Coal Corp | 6 | — |
| Mark Sand & Gravel Co. | 6 | 18 |
| Marquise Mining Corp | 6 | 5 |
| Mc Namee Resources Inc | 6 | — |
| Miami Coal Company | 6 | — |
| Michael Coal Company | 6 | 23 |
| Mid-Continent Resources Inc | 6 | — |
| Milestone Materials Div/Mathy Construction | 6 | 14 |
| Milestone Materials Division Mathy Construction Co | 6 | 9 |
| Mingo Logan Coal Company | 6 | — |
| Minton Hickory Coal Company | 6 | — |
| Mosaic Fertilizer, LLC | 6 | 847 |
| Mosaic Phosphates Company | 6 | — |
| Mountain States Constructors Inc | 6 | 36 |
| Mountaineer Metallurgical Holdings LLC | 6 | — |
| Nelcon Inc | 6 | 9 |
| Nesco Inc | 6 | 4 |
| New Frontier Materials Operations Alpha, LLC | 6 | 189 |
| New Harlan Block Coal Company Inc | 6 | — |
| New Look Contracting | 6 | 14 |
| New River Fuel Inc | 6 | — |
| Nickel Plate Mining Company Inc | 6 | — |
| Northern Aggregate Inc. | 6 | 10 |
| O-N Minerals (Chemstone Company) | 6 | 186 |
| Oneida Coal Company Inc | 6 | — |
| Opperman Inc | 6 | 10 |
| Oxford Mining Company-Kentucky, LLC | 6 | — |
| P & W Mine Parts & Services Inc | 6 | — |
| Pardeesville Associates | 6 | — |
| Pen Coal Corp | 6 | — |
| Pen Mining Company | 6 | — |
| Pete Lien & Sons Inc/Sand & Gravel Division | 6 | 15 |
| Phoenix Resources Inc | 6 | — |
| Powell Mountain Coal Company Inc | 6 | 4 |
| Preston Ready Mix Corp | 6 | 14 |
| Prosperity Mining Inc | 6 | — |
| Pyro Mining Company | 6 | — |
| Quikrete Construction Materials, LLC | 6 | 626 |
| R & F Coal Company | 6 | — |
| RMS Gravel Inc | 6 | — |
| Race Fork Coal Corp | 6 | 22 |
| Rainsville Energy Inc | 6 | — |
| Ramblin Coal Company Inc | 6 | — |
| Rango Inc. | 6 | 10 |
| Raven Mining Company Inc | 6 | — |
| Reckoning Reclamation, LLC. | 6 | 15 |
| Reedy Coal Company Inc | 6 | — |
| Republic Energy LLC | 6 | 477 |
| Restoration Group, Inc. | 6 | 21 |
| Road Fork Development Company Inc | 6 | — |
| Robin Resources Inc | 6 | — |
| Rock Services Inc | 6 | 10 |
| Ruth Contracting Corp | 6 | — |
| S & G Excavating, Inc. | 6 | 56 |
| S & M Coal Company | 6 | — |
| S & T Coal Company | 6 | — |
| SRM Materials | 6 | 35 |
| Sandy Fork Mining Company Inc | 6 | — |
| Savannah Valley Quarries, LLC | 6 | 48 |
| Schildberg Construction | 6 | 1 |
| Schmidt Aggregates | 6 | 33 |
| Scorpio Mining Inc | 6 | — |
| Secon | 6 | 14 |
| Seubert Excavators Inc | 6 | 25 |
| Sher-Mel Coal Company Inc | 6 | 18 |
| Sheridan Enterprises Inc | 6 | — |
| Shiloh Mining Inc | 6 | — |
| Sibelco North America, Inc | 6 | 166 |
| Sky Haven Coal Inc | 6 | — |
| Smith Contracting Inc. | 6 | — |
| South Akers Mining Llc | 6 | 82 |
| Southeast Leasing Inc | 6 | — |
| Southeastern Land, LLC | 6 | — |
| Southern Aggregates LLC Delaware | 6 | — |
| Southern Aggregates of Delaware, LLC | 6 | — |
| Stanford Mining Company | 6 | — |
| Star Fire Mining Company | 6 | — |
| State of Alaska Department of Transportation | 6 | 8 |
| Straight Creek Mining Inc | 6 | — |
| Stratford Gravel, Inc. | 6 | 13 |
| Syracuse Sand & Gravel LLC | 6 | 5 |
| T & T Coal Inc | 6 | — |
| Tahiti Energy, Inc. | 6 | 29 |
| Tdc Inc | 6 | — |
| Ten-A-Coal Company | 6 | — |
| Tennessee Coal Company | 6 | — |
| Tennessee Consolidated Coal Company | 6 | — |
| The Quartz Corp USA | 6 | 142 |
| Trace Fork Coal Company | 6 | — |
| Tri-County Paving | 6 | 17 |
| Tri-State Auger Mining Inc | 6 | — |
| Trosper Mining Inc | 6 | 4 |
| Turner Brothers Inc | 6 | — |
| Twin Star Coal Company Inc | 6 | — |
| Val-Tex Asphalt & Environmental Inc. | 6 | — |
| Vencill Corp | 6 | 26 |
| Virginia Iron Coal & Coke Company | 6 | 23 |
| Vulcan Materials Asphalt and Construction, LLC | 6 | 61 |
| W & P Coal Company Inc | 6 | — |
| WINGRA STONE COMPANY INC. | 6 | 4 |
| Walters Ready Mix Inc | 6 | 11 |
| Wash Ridge Coal Company Inc | 6 | — |
| Western Kentucky Minerals, Inc. | 6 | — |
| Western Sand & Gravel Company | 6 | 21 |
| White Pine Coal Company Inc | 6 | — |
| Wingra Stone Company | 6 | 5 |
| Wood's Crushing & Hauling Inc | 6 | 17 |
| 3M Company | 5 | 420 |
| A & K Earth Movers Inc | 5 | 1 |
| A B C Coal Company Inc | 5 | — |
| A. Wilber Stone Inc. | 5 | 6 |
| APPALACHIAN RESOURCE WEST VIRGINIA, LLC | 5 | 137 |
| Abc Mining Company Inc | 5 | — |
| Ace Coal Company Inc | 5 | 30 |
| Adena Fuels Inc | 5 | 56 |
| Aggregate Industries WCR Inc | 5 | — |
| Aggregates West Inc | 5 | — |
| Aguado Stone Inc. | 5 | 72 |
| Albatross Mining Corp | 5 | — |
| Alsop Sand Company Inc | 5 | 8 |
| Ameri-Con Materials Inc. | 5 | 13 |
| Amherst Coal Company | 5 | — |
| Amrize South Central Inc. | 5 | 93 |
| Anderson Columbia Co., Inc. | 5 | 33 |
| Angelo Luppino, Inc. | 5 | 7 |
| Apex Materials LLC | 5 | 10 |
| Apollo Corp | 5 | — |
| Appalachian Collieries Corp | 5 | — |
| Apple Tree Mining Company | 5 | — |
| Aracoma Coal Company Inc | 5 | — |
| Arc Energies Inc | 5 | 20 |
| Arjay Mining Inc | 5 | — |
| Award Development, LLC | 5 | — |
| B & D Mining L.L.C. | 5 | — |
| B & E Inc | 5 | — |
| B & H Coal Company | 5 | — |
| B & Ls Contracting Inc | 5 | — |
| B & S Coal Company | 5 | — |
| B R Amon & Sons Inc | 5 | — |
| B R C Coal Company Inc | 5 | — |
| BURNCO | 5 | 1 |
| Baldwin Sand and Gravel | 5 | 14 |
| Bandera Stone Inc | 5 | 12 |
| Bar Coal Inc | 5 | — |
| Battle Ridge Companies | 5 | — |
| Bedrock Mines LP | 5 | — |
| Belfry Coal Corp | 5 | — |
| Bell County Coal Corporation | 5 | — |
| Bennett Stone | 5 | 5 |
| Bennoc Inc | 5 | — |
| Bentley Coal Company | 5 | — |
| Bentonite Performance Minerals LLC | 5 | 213 |
| Betty Coal Company Inc | 5 | — |
| Big Bear Mining Company Inc | 5 | — |
| Big Hill Coal Company | 5 | — |
| Big Ridge Inc | 5 | 1 |
| Bills Coal Company Inc | 5 | — |
| Black Bear Mining Inc | 5 | — |
| Black Hawk Mining LLC | 5 | — |
| Blair Coal Company Inc | 5 | — |
| Blazing Saddles Coal Corp | 5 | — |
| Bluegrass Mining | 5 | — |
| Bmc Inc | 5 | — |
| Bob & Tom Coal Company Inc | 5 | — |
| Bologna Mining Company | 5 | — |
| Brandy Mining Inc | 5 | — |
| Branscome Operating, LLC | 5 | 20 |
| Bridgeport Mining Company | 5 | — |
| Bristol Coal Corp | 5 | 25 |
| Brook Contracting Corp | 5 | — |
| C & J Gravel Products Inc | 5 | 12 |
| C & N Coal Company | 5 | — |
| C & P Coal Company Inc | 5 | — |
| C Energy Inc | 5 | 6 |
| C S & S Coal Corp | 5 | 28 |
| C W Augering Inc | 5 | — |
| CEMEX Construction Materials LP | 5 | 10 |
| CERSOSIMO INDUSTRIES INC | 5 | 16 |
| COBLESKILL STONE PRODUCTS INC | 5 | 35 |
| Camara Slate Products Inc | 5 | 2 |
| Campbell Sand & Gravel Company | 5 | 3 |
| Cape Cod Aggregates Corp | 5 | 42 |
| Capital Quarries Co Inc | 5 | 23 |
| Carbo Ceramics Inc | 5 | 88 |
| Cardinal Resources Inc | 5 | — |
| Carl Clear Coal Corp | 5 | — |
| Carver Sand & Gravel LLC | 5 | — |
| Cedar Bend Coal Company Inc | 5 | — |
| Central Sand & Gravel Co | 5 | 9 |
| Central Sand and Gravel Company | 5 | — |
| Chafin Coal Company Inc | 5 | — |
| Chloe Ridge Coal Company Inc | 5 | — |
| Clear Development, LLC | 5 | 7 |
| Clever Mining Company Inc | 5 | — |
| Climax Molybdenum Company | 5 | 688 |
| Clintwood Elkhorn Mining Company Inc | 5 | — |
| Close Construction Company Inc | 5 | 12 |
| Coal Corp Of America Inc | 5 | — |
| Colonial Coal Company Inc | 5 | — |
| Colorado Crushing Inc | 5 | 13 |
| Columbia River Carbonates | 5 | 94 |
| Concord Coal Corp | 5 | — |
| Conn & Hayes Mining Company | 5 | — |
| Consolidated Materials, Inc. | 5 | 13 |
| Cravat Coal Company Inc | 5 | — |
| Crockett Collieries (Ky) Inc | 5 | — |
| Curtis Sand & Gravel | 5 | 6 |
| D & D Quarry LLC | 5 | — |
| D & G Excavating Inc | 5 | 14 |
| D Molesevich & Sons Construction Co Inc | 5 | 13 |
| D O & W Coal Company Inc | 5 | 22 |
| D. CONDRON CONSTRUCTION, INC. | 5 | 34 |
| DH Manufacturing LLC | 5 | 5 |
| Dags Branch Coal Co Inc | 5 | — |
| Dakota Stone, Inc | 5 | 16 |
| Dale E Percy Inc | 5 | 11 |
| Dan Del Coals Inc | 5 | — |
| Danny Jasper Inc | 5 | 17 |
| Deep Ford Mining Company Inc | 5 | — |
| Delta Coal Sales Inc | 5 | — |
| Delta Contracting Inc | 5 | — |
| Delta Mining Inc | 5 | — |
| Derek Mining Inc | 5 | — |
| Dixie Fuel Company LLC | 5 | — |
| Double R Coal Company | 5 | — |
| Dove Coal Corp | 5 | — |
| E & E Coal Company | 5 | — |
| E R Jahna Industries Inc | 5 | 101 |
| Eagle Highwall Mining Systems, LLC | 5 | 15 |
| Eagle Mining Inc | 5 | — |
| Eagle Stone Inc | 5 | — |
| Eastern Energy Corp | 5 | 4 |
| Eastern Oklahoma Stone LLC | 5 | 38 |
| Edwards Holding Inc | 5 | — |
| Elkhorn Crystal Inc | 5 | — |
| Energy Coal Income Partnership | 5 | 1 |
| Energy Technologies Inc | 5 | — |
| F & B Coal Inc | 5 | — |
| Fairfax Materials Inc | 5 | 35 |
| Faith Coal Sales Inc | 5 | — |
| Faulks Bros. Construction | 5 | 10 |
| Fayette Coal & Coke Inc | 5 | 9 |
| Ferguson Aggregate & Crushing, Inc. | 5 | 7 |
| First Rate Excavate | 5 | 10 |
| Fleetwood Energy Inc | 5 | 24 |
| Fort McDowell Yavapai Materials | 5 | 15 |
| Freeman Fuels Inc | 5 | — |
| Friendship Energy Inc | 5 | — |
| Frontera Materials Inc | 5 | 26 |
| G & M Coal Company | 5 | — |
| G & Y Coal Company Inc | 5 | — |
| G A J K Coal Corp | 5 | — |
| Gale Briggs Inc | 5 | 12 |
| Gale Coal Company Inc | 5 | — |
| Gale Lim Construction LLC | 5 | 4 |
| Garry Carroll Trucking Inc | 5 | 27 |
| Gauley Eagle Holdings Inc | 5 | — |
| Glacial Sand & Gravel Company | 5 | 6 |
| Glenn O Hawbaker | 5 | 1 |
| Golden R Coal Company | 5 | — |
| Gowan Construction, Inc. | 5 | 24 |
| Grand Rapids Gravel Company | 5 | 8 |
| Gray's Excavating Inc | 5 | — |
| Graymont (Pa) Inc | 5 | 151 |
| Great Eastern Coal Corp | 5 | — |
| Green Brothers Gravel Company, Inc. | 5 | 8 |
| Green Valley Coal Company | 5 | — |
| Gum Branch Coal Company Inc | 5 | — |
| Gun Mining Company Inc | 5 | 4 |
| H & H Coal Company Inc | 5 | — |
| H & S Coal Company | 5 | — |
| H-K Contractors Inc | 5 | 18 |
| Hammond Wholesale Flagstone, Inc. | 5 | — |
| Hanover Resources, LLC | 5 | — |
| Hanson Brick East LLC | 5 | — |
| Hanson Material Service | 5 | — |
| Harrison Aggregates | 5 | 40 |
| Harry Silvers Quarry | 5 | — |
| Harvey Energy Corp | 5 | — |
| Hawaiian Rock Products | 5 | 140 |
| Hecla Machinery & Equipment Company | 5 | — |
| Hendrickson Drilling LLC | 5 | — |
| Hendrickson Equipment, Inc. | 5 | — |
| Hensley Brothers Mining Inc | 5 | — |
| Heritage Aggregates, LLC | 5 | — |
| Hi-Energy Inc | 5 | — |
| Hiope Mining Inc | 5 | — |
| Hokie Mining Company | 5 | — |
| Holly Mining Inc | 5 | — |
| Hopkins County Coal LLC | 5 | — |
| Horn Construction Company Inc | 5 | 9 |
| ICG East Kentucky LLC | 5 | — |
| IN Limestone Co | 5 | 45 |
| Imerys Marble Inc | 5 | — |
| Industrial Mining, LLC | 5 | — |
| Interstate Concrete and Asphalt Company | 5 | 16 |
| Intex Corporation | 5 | 11 |
| Irving Materials Inc | 5 | — |
| Ivy Branch Coal Company Inc | 5 | 28 |
| J & C Coal Company | 5 | — |
| J & J Aggregates Inc. | 5 | 22 |
| J & R Coal Inc | 5 | — |
| J & S Coal Company | 5 | — |
| J W Construction Company Inc | 5 | 14 |
| J. E. McAmis, Inc. | 5 | 5 |
| JULIAN MATERIALS, LLC. | 5 | 20 |
| Jackson & Jackson Coal Company Inc | 5 | — |
| Jackson Branch Coal Company | 5 | — |
| Jagrti Coal Company Inc | 5 | — |
| James Peterson Sons Inc | 5 | 13 |
| Jamieson Construction Company Inc | 5 | — |
| Jet Coal Company Inc | 5 | 73 |
| John S Lane & Son | 5 | 40 |
| Johnston & Rhodes Bluestone Co. | 5 | — |
| Jones Bros Mfg Inc | 5 | 19 |
| Juliana Mining Company Inc | 5 | — |
| K C Rogers Coal Company Inc | 5 | — |
| K D Crain & Sons Inc | 5 | — |
| K T Rock LLC | 5 | — |
| Kannan Mining Company Inc | 5 | — |
| Karst Robbins Coal Company Inc | 5 | — |
| Key Mining Inc | 5 | — |
| Keystone Lime Company Inc | 5 | 42 |
| Kilauea Crushers Inc | 5 | 53 |
| Kingston Mining, Inc. | 5 | 195 |
| Klotz Sand Co., Inc. | 5 | 23 |
| Knife River Corporation Mountain West | 5 | 17 |
| Knife River Missoula | 5 | 13 |
| Knik Construction Company Inc | 5 | 2 |
| Knox Creek Coal Corporation | 5 | — |
| Krulock Inc | 5 | — |
| L & D Inc | 5 | — |
| L & R Fuels Inc | 5 | — |
| LCT Energy, LP | 5 | 121 |
| LID Not Available | 5 | 15 |
| LYCON Inc. | 5 | 10 |
| Lamb Rock | 5 | — |
| Landfall Mining Inc | 5 | — |
| Laurel Creek Mining Company Inc | 5 | — |
| LeGrand Johnson | 5 | 24 |
| Leishman Auger Mining | 5 | — |
| Lhoist North America of Alabama, LLC | 5 | 220 |
| Liberty Bell Fuel Inc | 5 | — |
| Liberty Management, LLC | 5 | 3 |
| Linck Aggregates, Inc. | 5 | 11 |
| Little Fork Resources & Development Corp | 5 | — |
| Little River Materials | 5 | 23 |
| Little Rock Mining Inc | 5 | — |
| Lon-Ray Corp | 5 | — |
| Loyal Creek Coal Company | 5 | — |
| M A C Coal Enterprises Inc | 5 | — |
| M-I L L C | 5 | 16 |
| MARKOWSKI EXCAVATING, INC. | 5 | 24 |
| Maben Energy Corp | 5 | — |
| Magris Talc USA, Inc. | 5 | 170 |
| Magruder Limestone Co | 5 | 12 |
| Magruder Limestone Co Inc | 5 | 8 |
| Management Consulting Services LLC | 5 | 7 |
| Marietta Coal Company | 5 | — |
| Martin Marietta Materials Southwest, Inc | 5 | — |
| Meridian Aggregates Company, a Limited Partnership | 5 | 56 |
| Meverden Materials Inc. | 5 | 11 |
| Mickelsen Construction Inc | 5 | 7 |
| Miles Sand & Gravel | 5 | 6 |
| Mill Branch Coal Corp | 5 | — |
| Min Inc | 5 | — |
| MineralTech Gulf Coast Abrasives, LLC | 5 | 49 |
| Mobile Aggregate Recycling Services, Inc. | 5 | 8 |
| Mobile Concrete Inc | 5 | 13 |
| Montana Bakken, LLC | 5 | — |
| Montes Stone Products, LLC | 5 | 20 |
| Morris Inc | 5 | 11 |
| Morris Sand & Gravel, Inc. | 5 | 3 |
| Mountain Coal Company | 5 | 2 |
| Mountain Enterprises Coal Company Inc | 5 | 12 |
| Mountain Materials Inc | 5 | 27 |
| Mountaineer Coal Company Inc | 5 | 49 |
| Mountaintop Restoration Inc | 5 | — |
| Muhlenberg County Coal Resources, Inc. | 5 | 17 |
| Mullinax Inc | 5 | 34 |
| Mullins Coal Company | 5 | 20 |
| Murphy'S Branch Inc | 5 | — |
| Mutual Materials Company | 5 | 9 |
| Myers Coal Company | 5 | 30 |
| Naceville Materials J.V. | 5 | 45 |
| Nelson Quarries Inc | 5 | 6 |
| New Point Stone Company Inc | 5 | 38 |
| Newmont USA Limited | 5 | — |
| Newport Trading Company Inc | 5 | — |
| Newtown Energy, Inc. | 5 | — |
| No 10 Coal Mine Inc | 5 | — |
| North Cambria Fuel Company Inc | 5 | — |
| North Central Aggregates | 5 | 11 |
| North County Sand & Gravel Inc | 5 | — |
| North Star Stone Inc. | 5 | 8 |
| Northern Son Inc | 5 | — |
| Northwestern Stone LLC | 5 | 9 |
| Nyrstar Tennessee Mines, Strawberry Plains LLC | 5 | 498 |
| Omya Inc | 5 | 277 |
| Original Fuels Inc | 5 | 7 |
| Osborn Coal Enterprises Inc | 5 | — |
| Ottawa Aggregates, Inc. | 5 | — |
| Owens Coal Company | 5 | 26 |
| Ozinga Materials, Inc. | 5 | 6 |
| P & K Company Ltd | 5 | — |
| P B Coal Inc | 5 | 25 |
| Patriot Mining Company LLC | 5 | — |
| Pay Car Mining, Inc. | 5 | — |
| Paybra Mining Company Inc | 5 | — |
| Pbs Coals Inc | 5 | — |
| Phil Strouth Coal Company | 5 | 12 |
| Phoenix Coal Company Inc | 5 | 56 |
| Phoenix Mining Company | 5 | — |
| Pickens Sand & Gravel Company Inc | 5 | 46 |
| Pine Bluffs Gravel & Excavating | 5 | 14 |
| Popple Brothers | 5 | — |
| Powell Mountain Coal Co., Inc. | 5 | — |
| Prairie Material Sales, Inc. - Aggregate Division | 5 | — |
| Prairie Sand and Gravel, Inc. | 5 | 12 |
| Prince Inc | 5 | 13 |
| Princess Susan Coal Company | 5 | — |
| Quality Rock, Inc. | 5 | 23 |
| Quinwood Coal Company LLC | 5 | — |
| R & M Coal Company Inc | 5 | 7 |
| R & R Coal Company | 5 | 17 |
| R J Grondin & Sons | 5 | 12 |
| R. E. Tucker Inc. | 5 | 6 |
| R3M Quarries | 5 | — |
| Ranger Fuel Corp | 5 | — |
| Redhawk Mining LLC | 5 | — |
| Reitz Coal Company | 5 | 1 |
| Resources Limited LLC | 5 | — |
| Responsible Energy Operations | 5 | 51 |
| Richland Coal Company | 5 | — |
| Rickey S Winn Construction | 5 | — |
| Rum Creek Coal Sales Inc | 5 | — |
| Rush Run Coal Company Inc | 5 | — |
| S & J EXCAVATING | 5 | 5 |
| S & L Coal Company Inc | 5 | — |
| SIMPSON DIRTWORX LLC | 5 | 4 |
| Salem Stone Corp | 5 | 65 |
| San Juan Coal Company | 5 | — |
| Schuylkill Contracting Company | 5 | — |
| Scott Construction Inc. | 5 | 7 |
| Select Mining Inc | 5 | — |
| Shady Lane Coal Corp | 5 | — |
| Shrewsbury Coal Company | 5 | — |
| Sigmon Coal Company, Inc. | 5 | 1 |
| Silvara Industries Inc. | 5 | — |
| Siri Contracting, LLC | 5 | 16 |
| Solar Sources Inc | 5 | 31 |
| South Fork Coal Co., LLC | 5 | 14 |
| Southern Wisconsin Aggregate Corporation | 5 | 11 |
| Southland Resources, Inc. | 5 | 60 |
| Springfield Coal Company LLC | 5 | — |
| Stanley Industries Inc | 5 | — |
| Stansbury & Company Inc | 5 | — |
| Star Coal Company | 5 | — |
| Stasky Coal Company | 5 | — |
| Sterling Mining Corporation | 5 | — |
| Sturgeon Mining Co., Inc. | 5 | 7 |
| Sugar Camp Mining Inc | 5 | — |
| Summit Sand & Aggregates LLC | 5 | 19 |
| Sun Coal Augering Inc | 5 | — |
| Sun Fire Coal Company | 5 | — |
| Sundre Sand & Gravel | 5 | 17 |
| Sunshine Concrete & Materials Inc | 5 | — |
| Super Aggregates | 5 | 15 |
| Susag Sand & Gravel Inc | 5 | 6 |
| Suulutaaq Inc | 5 | 4 |
| Syar Industries Inc | 5 | — |
| T & R Coal Company Inc | 5 | 21 |
| T & T Energy LLC | 5 | — |
| T.J.S. Mining, Inc. | 5 | — |
| TMC Inc | 5 | 10 |
| Tackett Creek Mining Inc | 5 | — |
| Talon Resources Inc | 5 | — |
| Tds Coals Inc | 5 | 4 |
| Terrie Lynn Coal Company Inc | 5 | 47 |
| The Banner Company | 5 | 7 |
| The Doe Run Company | 5 | 558 |
| Thiele Kaolin Company | 5 | 741 |
| Thornton Construction, Inc. | 5 | 6 |
| Thunder Bay Inc | 5 | — |
| Titan Mid-Atlantic Aggregates LLC | 5 | 18 |
| Top Grade Aggregates, LLC | 5 | 14 |
| Transwestern Mining Company | 5 | — |
| Tri-Star Mining Company Inc | 5 | 46 |
| Triangle Rock Products | 5 | 54 |
| Triple C Coal Company | 5 | — |
| Triple J Coal Company Inc | 5 | 4 |
| Triple S Coal Company Inc | 5 | 32 |
| U. S. Operating Services Company | 5 | — |
| Unimin Corp | 5 | — |
| United Minerals Inc | 5 | 5 |
| United Pocahontas Coal Company | 5 | — |
| Use Coal Inc | 5 | — |
| Valley Sand & Gravel Inc | 5 | 11 |
| Vasquez Stone | 5 | 2 |
| Vasquez Stone Supply LLC | 5 | 3 |
| Vontz Paving, Inc | 5 | 10 |
| Warren C Hartman Contractor | 5 | — |
| Welch Sand & Gravel Inc | 5 | 23 |
| Wells Auger Mining Inc | 5 | — |
| West Hawaii Concrete | 5 | 17 |
| West Ken Coal Corp | 5 | — |
| Western Construction Inc | 5 | 33 |
| Western Construction of Lewiston, Inc. | 5 | 22 |
| Westwood Coal Company | 5 | 48 |
| White Buck Coal Company | 5 | — |
| White Flame Energy Inc | 5 | — |
| William M Larned & Sons Inc | 5 | 5 |
| Wyoming Mining Company Inc | 5 | — |
| York & Son's Quarries | 5 | 17 |
| ZALUZNY EXCAVATING CORPORATION | 5 | 11 |
| Zion Mining Company | 5 | 19 |