Data / Mines
US mines and quarries: 13,673 open mines and MSHA citations
MSHA lists 13,673 open mines and quarries in the United States on November 6, 2026, run by 6,909 operators and employing 195,868 people. Since January 1, 2022 MSHA inspectors issued 403,254 citations and orders, 17.7% of them significant and substantial, with $278,709,055 in proposed penalties, and operators reported 25,665 injury and illness cases, 161 of them fatal.
SpecStream is the live web data engine for teams and agents. It reads the mine, citation, inspection and accident files that MSHA publishes, and this page is that reading. Ask for the mines of a commodity, state or operator with the operator's headquarters, website and size added from the web, and new mines, new citations and new accident reports arrive in your sheet, CRM, Slack or agent as MSHA posts them.
- 13,673Open mines
- 6,909Operators
- 133Parent companies, 5+ mines
- 195,868Employees
- 403,254Citations and orders
- $278,709,055Proposed penalties
- 175,624Inspections
- 25,665Injury and illness cases
- 161Fatalities
- January 1, 2022Window starts
- November 6, 2026MSHA files dated
Parent companies with the most open mines
Controllers MSHA names, ranked by open mines; citations since 2022 at those mines.
| Parent company | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|
| CRH PLC | 448 | 5,567 | 8,335 | $5,738,341 | 826 |
| Martin Marietta Materials Inc | 329 | 6,043 | 4,980 | $2,290,995 | 539 |
| Vulcan Materials Company | 252 | 4,889 | 2,135 | $749,303 | 463 |
| Heidelberg Materials AG | 164 | 3,513 | 6,877 | $7,843,521 | 424 |
| Rogers Group Inc | 87 | 1,104 | 1,391 | $374,104 | 90 |
| Knife River Corporation | 84 | 488 | 569 | $275,699 | 69 |
| Amrize Ltd | 80 | 3,161 | 6,344 | $9,443,588 | 317 |
| Mathy Construction Company | 75 | 196 | 169 | $35,209 | 47 |
| Summit Materials LLC | 62 | 456 | 943 | $454,970 | 57 |
| Granite Construction Inc | 50 | 469 | 656 | $807,469 | 20 |
| Alpha Metallurgical Resources Inc | 48 | 3,176 | 13,317 | $12,028,019 | 617 |
| Cemex S a | 47 | 2,117 | 2,753 | $4,249,667 | 221 |
| Sev.en Global Investments A.s. | 47 | 1,745 | 15,066 | $15,083,548 | 287 |
| Cci (Clyde Companies Inc) | 41 | 268 | 492 | $195,219 | 36 |
| New Enterprise Stone & Lime Company Inc | 38 | 484 | 784 | $171,290 | 85 |
| Carmeuse Holding SA | 30 | 1,302 | 1,851 | $1,695,753 | 186 |
| M10 Inc | 30 | 84 | 97 | $16,590 | 13 |
| Quikrete Holdings Inc. | 30 | 1,299 | 2,538 | $3,457,195 | 141 |
| Uss Holdings Inc | 30 | 1,302 | 955 | $420,527 | 74 |
| Riverstone Group | 29 | 311 | 359 | $258,515 | 71 |
| Taiheiyo Cement Corp | 29 | 806 | 1,157 | $1,008,753 | 132 |
| Ramaco Resources Inc | 27 | 815 | 6,865 | $7,357,258 | 181 |
| Manaco Corporation | 26 | 109 | 214 | $34,750 | 21 |
| Covia Holdings LLC | 25 | 730 | 718 | $266,254 | 87 |
| Wienerberger AG | 25 | 81 | 77 | $11,232 | 0 |
| Peckham Industries Inc | 23 | 187 | 481 | $105,836 | 21 |
| Robindale Energy Services Inc | 23 | 278 | 169 | $33,739 | 42 |
| The Heritage Group | 23 | 206 | 424 | $264,908 | 30 |
| Acnr Holdings, Inc | 22 | 2,285 | 10,424 | $6,893,908 | 1,436 |
| RR Holdco, Inc. | 21 | 80 | 81 | $16,393 | 10 |
| Moriah TFS Holdings LLC | 20 | 45 | 116 | $17,973 | 0 |
| Alliance Resource Partners LP | 19 | 2,960 | 11,060 | $5,559,976 | 1,111 |
| Arcosa, Inc | 19 | 348 | 311 | $84,736 | 20 |
| Core Natural Resources Inc | 19 | 3,237 | 13,798 | $8,739,280 | 628 |
| Lexington Coal Holdings, Inc | 19 | 15 | 817 | $721,672 | 13 |
| Peabody Energy Corporation | 19 | 3,374 | 7,855 | $7,725,832 | 321 |
| Cleveland-Cliffs Inc | 18 | 2,513 | 4,261 | $4,640,741 | 214 |
| National Lime & Stone Co. | 17 | 242 | 354 | $77,493 | 40 |
| Polycor Inc | 17 | 218 | 266 | $125,228 | 99 |
| Eagle Materials Inc | 16 | 934 | 2,015 | $1,730,909 | 128 |
| L G Everist Inc | 16 | 166 | 169 | $28,051 | 45 |
| S C Holdings Inc | 16 | 33 | 45 | $7,366 | 2 |
| Teichert Inc | 16 | 242 | 272 | $251,290 | 12 |
| Chaney Enterprises LP | 14 | 78 | 121 | $30,094 | 6 |
| Dolese Brothers Company | 14 | 367 | 322 | $109,615 | 66 |
| Mohegan Energy Trustees LLC | 14 | 86 | 515 | $186,965 | 5 |
| Iron Oak Energy Solutions LLC | 13 | 894 | 1,173 | $1,098,546 | 135 |
| Vinci Group | 13 | 47 | 44 | $7,390 | 5 |
| Atlas Energy Solutions Inc | 12 | 434 | 410 | $145,518 | 48 |
| Berkshire Hathaway Inc | 12 | 68 | 69 | $10,523 | 1 |
| Minerals Technologies Inc | 12 | 497 | 897 | $362,731 | 69 |
| Construction Partners Inc | 11 | 75 | 158 | $82,407 | 17 |
| Eucon Corporation | 11 | 91 | 124 | $28,482 | 13 |
| Aggregate Management, Inc | 10 | 219 | 113 | $25,818 | 25 |
| BMC Enterprises Inc | 10 | 60 | 182 | $44,578 | 2 |
| Freeport-McMoRan Inc | 10 | 10,098 | 2,786 | $2,376,365 | 1,369 |
| Graymont Ltd | 10 | 563 | 974 | $325,144 | 79 |
| Javelin Global Commodities (uk) Ltd | 10 | 320 | 1,256 | $465,504 | 66 |
| Jobeco Materials LLC | 10 | 90 | 216 | $95,591 | 25 |
| Rasmussen Group Inc | 10 | 64 | 129 | $26,242 | 8 |
| Snyder Associated Companies Inc | 10 | 208 | 187 | $61,608 | 17 |
| Atm Holdings LLC | 9 | 96 | 211 | $49,436 | 3 |
| Clyde Holding Inc | 9 | 99 | 513 | $1,575,698 | 8 |
| Halliburton Company | 9 | 262 | 135 | $23,947 | 15 |
| Nebco Inc | 9 | 41 | 99 | $17,911 | 11 |
| Zachry Corporation | 9 | 181 | 244 | $66,626 | 25 |
| Appalachian Resource Company LLC | 8 | 132 | 1,375 | $1,613,632 | 23 |
| Ferroglobe PLC | 8 | 136 | 507 | $114,479 | 15 |
| J M Huber Corp | 8 | 402 | 491 | $191,585 | 69 |
| Jod Holdings LLC | 8 | 3 | 1,598 | $559,796 | 12 |
| Pete Lien & Sons Inc | 8 | 210 | 248 | $113,141 | 40 |
| S M Lorusso & Sons Inc | 8 | 87 | 211 | $118,600 | 41 |
| Strategic Commercial Realty Inc | 8 | 57 | 148 | $27,110 | 11 |
| Titan Cement International S a | 8 | 473 | 450 | $246,581 | 90 |
| United States Lime & Minerals Inc | 8 | 292 | 643 | $357,133 | 42 |
| Usg Corporation | 8 | 277 | 363 | $130,599 | 30 |
| Wolverine Fuels LLC | 8 | 955 | 3,746 | $4,150,589 | 127 |
| All States Materials Group | 7 | 55 | 142 | $181,242 | 5 |
| Bolinder Resources Esop and Trust | 7 | 32 | 29 | $5,780 | 1 |
| Central Specialties, Inc. | 7 | 21 | 48 | $12,443 | 1 |
| D a Collins Construction Company Inc | 7 | 30 | 55 | $7,945 | 5 |
| Dawson Trust Dated June 20 2009 | 7 | 62 | 129 | $21,151 | 33 |
| E R Jahna Industries Inc | 7 | 111 | 17 | $2,883 | 4 |
| Haghler LLC | 7 | 87 | 161 | $32,951 | 8 |
| IMin Partners | 7 | 676 | 189 | $87,566 | 32 |
| Kinross Gold Corporation | 7 | 2,045 | 495 | $265,254 | 141 |
| Lionmark Construction Companies LLC | 7 | 36 | 81 | $11,847 | 3 |
| Mastec Inc | 7 | 36 | 87 | $22,115 | 1 |
| O & G Industries Inc | 7 | 42 | 44 | $6,507 | 7 |
| Pavement Materials LLC | 7 | 12 | 1 | $147 | 0 |
| Pro Frac Holding Corp | 7 | 378 | 353 | $164,349 | 32 |
| Quikrete Construction Materials, LLC | 7 | 115 | 47 | $9,535 | 6 |
| Shelly & Sands Inc | 7 | 35 | 74 | $12,987 | 4 |
| Thorberg Collectorate Inc | 7 | 26 | 1,061 | $340,846 | 29 |
| American Resources Corporation | 6 | 6 | 194 | $44,417 | 0 |
| Bayer Construction Company Inc | 6 | 55 | 179 | $54,976 | 18 |
| Blaschak Holding Corp | 6 | 148 | 102 | $25,279 | 35 |
| Brian L Wood | 6 | 20 | 50 | $10,127 | 1 |
| Evs Master Holdco LLC | 6 | 105 | 105 | $188,695 | 13 |
| HBM Holdings Company | 6 | 716 | 919 | $885,274 | 83 |
States
| State | Open mines | Operators | Employees | Citations since 2022 |
|---|
| Texas | 921 | 515 | 13,187 | 25,338 |
| Pennsylvania | 688 | 379 | 9,363 | 22,617 |
| Wisconsin | 641 | 240 | 3,049 | 4,563 |
| Minnesota | 634 | 317 | 5,033 | 8,102 |
| New York | 594 | 375 | 3,343 | 8,961 |
| West Virginia | 462 | 184 | 13,188 | 68,906 |
| Michigan | 450 | 255 | 3,892 | 7,167 |
| California | 423 | 259 | 7,560 | 9,860 |
| Kentucky | 415 | 198 | 5,702 | 30,932 |
| Maine | 370 | 197 | 988 | 2,505 |
| Arizona | 343 | 178 | 15,005 | 7,700 |
| Missouri | 337 | 180 | 5,833 | 10,296 |
| Ohio | 320 | 178 | 3,520 | 7,347 |
| Virginia | 315 | 150 | 4,396 | 7,807 |
| Colorado | 314 | 181 | 4,039 | 9,636 |
| Utah | 306 | 181 | 4,573 | 11,045 |
| Tennessee | 305 | 147 | 3,452 | 4,471 |
| Oregon | 287 | 191 | 1,453 | 3,499 |
| Washington | 269 | 166 | 1,515 | 4,947 |
| Idaho | 263 | 164 | 2,482 | 2,951 |
| Iowa | 263 | 91 | 2,014 | 4,042 |
| Indiana | 262 | 121 | 4,570 | 9,920 |
| Montana | 256 | 162 | 4,106 | 4,449 |
| Illinois | 255 | 140 | 4,425 | 14,658 |
| North Carolina | 245 | 107 | 3,423 | 1,928 |
| Nevada | 241 | 137 | 13,142 | 9,278 |
| Oklahoma | 234 | 136 | 2,929 | 4,154 |
| Wyoming | 234 | 121 | 7,480 | 7,364 |
| Alabama | 222 | 134 | 5,539 | 18,023 |
| Alaska | 220 | 153 | 3,790 | 1,662 |
| Kansas | 217 | 115 | 1,541 | 4,310 |
| Vermont | 198 | 116 | 875 | 1,985 |
| Georgia | 197 | 91 | 5,319 | 2,733 |
| New Mexico | 194 | 144 | 3,425 | 5,403 |
| New Hampshire | 175 | 110 | 674 | 1,550 |
| Florida | 172 | 105 | 4,493 | 3,909 |
| Arkansas | 162 | 107 | 2,275 | 4,570 |
| South Dakota | 152 | 97 | 1,040 | 2,063 |
| Massachusetts | 145 | 99 | 907 | 2,292 |
| North Dakota | 135 | 72 | 1,643 | 1,492 |
| Nebraska | 133 | 71 | 872 | 1,773 |
| Connecticut | 111 | 71 | 577 | 1,928 |
| South Carolina | 107 | 57 | 2,530 | 2,984 |
| Louisiana | 104 | 81 | 1,619 | 4,294 |
| Mississippi | 82 | 50 | 1,031 | 1,213 |
| Maryland | 75 | 46 | 1,270 | 1,650 |
| New Jersey | 66 | 51 | 964 | 1,192 |
| Puerto Rico | 54 | 46 | 771 | 1,064 |
| Rhode Island | 42 | 24 | 238 | 672 |
| Hawaii | 32 | 22 | 327 | 420 |
| Delaware | 9 | 6 | 76 | 137 |
| Northern Mariana Islands | 8 | 7 | 135 | 0 |
| American Samoa | 6 | 4 | 37 | 0 |
| Guam | 5 | 4 | 191 | 0 |
| U.S. Virgin Islands | 3 | 2 | 47 | 28 |
Kinds of mine
| Kind | Open mines | Operators | Employees | Citations since 2022 |
|---|
| Sand and gravel mines | 6,476 | 3,748 | 30,935 | 69,314 |
| Stone mines | 4,501 | 2,300 | 61,378 | 99,381 |
| Coal mines | 1,188 | 567 | 37,690 | 155,848 |
| Nonmetal mines | 933 | 643 | 22,519 | 27,738 |
| Metal mines | 317 | 250 | 43,346 | 29,453 |
Commodities
MSHA's main commodity for each mine.
| Commodity | Open mines | Operators | Employees | Citations since 2022 |
|---|
| Construction sand and gravel | 5,988 | 3,481 | 28,036 | 63,502 |
| Crushed, broken limestone | 1,950 | 887 | 24,303 | 38,001 |
| Coal (bituminous) | 1,056 | 484 | 34,358 | 152,822 |
| Crushed, broken stone | 956 | 685 | 5,689 | 13,273 |
| Sand, common | 488 | 413 | 2,899 | 5,812 |
| Dimension stone | 355 | 281 | 2,095 | 4,353 |
| Crushed, broken granite | 320 | 131 | 6,003 | 4,704 |
| Sand, industrial | 308 | 264 | 3,534 | 6,647 |
| Gold ore | 175 | 142 | 15,071 | 8,350 |
| Crushed, broken sandstone | 160 | 128 | 1,729 | 2,563 |
| Dimension sandstone | 158 | 130 | 1,072 | 1,826 |
| Dimension limestone | 157 | 118 | 1,744 | 2,695 |
| Coal (anthracite) | 117 | 70 | 1,044 | 2,359 |
| Cement | 99 | 52 | 11,970 | 22,474 |
| Common clays | 98 | 69 | 2,457 | 1,598 |
| Crushed, broken traprock | 96 | 75 | 1,584 | 2,041 |
| Lime | 73 | 47 | 3,400 | 4,761 |
| Gypsum | 55 | 32 | 932 | 1,259 |
| Dimension granite | 54 | 44 | 364 | 595 |
| Clay, ceramic, refractory mnls. | 52 | 44 | 725 | 521 |
| Common shale | 50 | 42 | 546 | 1,329 |
| Dimension slate | 34 | 26 | 223 | 514 |
| Bentonite | 31 | 10 | 648 | 636 |
| Copper ore | 31 | 26 | 15,498 | 5,061 |
| Crushed, broken basalt | 30 | 26 | 100 | 208 |
| Fire clay | 27 | 22 | 147 | 230 |
| Iron ore | 27 | 23 | 4,246 | 6,446 |
| Shell | 26 | 25 | 271 | 376 |
| Barite barium ore | 24 | 11 | 348 | 436 |
| Misc. nonmetallic mnls. | 22 | 21 | 208 | 589 |
| Gemstones | 19 | 18 | 95 | 123 |
| Kaolin and ball clay | 18 | 10 | 1,638 | 539 |
| Silver ore | 17 | 14 | 1,479 | 952 |
| Coal (lignite) | 15 | 15 | 2,288 | 667 |
| Crushed, broken slate | 15 | 15 | 85 | 153 |
| Salt | 15 | 12 | 1,573 | 3,306 |
| Ground silica | 13 | 12 | 435 | 763 |
| Phosphate rock | 13 | 10 | 2,150 | 866 |
| Diatomaceous earth (diatomite) | 12 | 5 | 660 | 483 |
| Pumice | 12 | 9 | 131 | 285 |
| Talc | 12 | 5 | 394 | 419 |
| Quartz, ground | 11 | 10 | 148 | 177 |
| Crushed, broken marble | 10 | 6 | 662 | 608 |
| Dimension marble | 10 | 10 | 128 | 164 |
| Lead-zinc ore | 10 | 5 | 1,429 | 2,639 |
| Perlite | 10 | 6 | 72 | 224 |
| Crushed, broken quartzite | 9 | 8 | 112 | 138 |
| Quartz, crystal | 9 | 9 | 200 | 179 |
| Agate | 8 | 6 | 26 | 64 |
| Mica | 8 | 6 | 75 | 43 |
| Uranium ore | 8 | 7 | 188 | 144 |
Counties with the most open mines
| County | Open mines | Operators | Employees | Citations since 2022 |
|---|
| Pike County, Kentucky | 92 | 46 | 295 | 6,447 |
| Mcdowell County, West Virginia | 83 | 41 | 893 | 6,494 |
| Maricopa County, Arizona | 72 | 30 | 569 | 1,063 |
| St Louis County, Minnesota | 72 | 35 | 2,947 | 4,330 |
| Susquehanna County, Pennsylvania | 65 | 51 | 245 | 868 |
| Schuylkill County, Pennsylvania | 63 | 42 | 647 | 1,202 |
| Wise County, Virginia | 59 | 29 | 132 | 931 |
| Logan County, West Virginia | 53 | 21 | 1,469 | 12,707 |
| York County, Maine | 52 | 33 | 148 | 377 |
| Wyoming County, West Virginia | 49 | 25 | 1,228 | 10,092 |
| Cumberland County, Maine | 47 | 25 | 100 | 242 |
| Pinal County, Arizona | 46 | 32 | 559 | 616 |
| Yavapai County, Arizona | 44 | 32 | 1,906 | 897 |
| Rutland County, Vermont | 43 | 31 | 337 | 685 |
| Williamson County, Texas | 43 | 34 | 712 | 1,425 |
| Clark County, Nevada | 42 | 27 | 563 | 1,359 |
| San Bernardino County, California | 42 | 30 | 1,891 | 1,528 |
| Penobscot County, Maine | 40 | 21 | 94 | 221 |
| Somerset County, Pennsylvania | 40 | 21 | 254 | 1,373 |
| Weld County, Colorado | 40 | 23 | 368 | 596 |
| Dodge County, Wisconsin | 39 | 9 | 115 | 201 |
| Luzerne County, Pennsylvania | 39 | 28 | 353 | 981 |
| Buchanan County, Virginia | 38 | 17 | 814 | 3,065 |
| Dane County, Wisconsin | 38 | 13 | 130 | 224 |
| Mingo County, West Virginia | 38 | 9 | 512 | 3,130 |
| Haskell County, Oklahoma | 36 | 18 | 293 | 349 |
| Riverside County, California | 36 | 28 | 587 | 684 |
| Worcester County, Massachusetts | 36 | 25 | 187 | 449 |
| Bradford County, Pennsylvania | 35 | 20 | 89 | 251 |
| Merrimack County, New Hampshire | 35 | 25 | 191 | 330 |
| Northumberland County, Pennsylvania | 35 | 30 | 240 | 484 |
| Harlan County, Kentucky | 34 | 13 | 531 | 2,892 |
| Waukesha County, Wisconsin | 34 | 9 | 158 | 347 |
| Delaware County, New York | 33 | 25 | 75 | 176 |
| Matanuska-Susitna, Alaska | 33 | 28 | 122 | 107 |
| Boone County, West Virginia | 32 | 11 | 511 | 3,593 |
| Fairbanks North Star, Alaska | 32 | 25 | 844 | 220 |
| Flathead County, Montana | 32 | 19 | 109 | 345 |
| Aroostook County, Maine | 31 | 14 | 98 | 112 |
| Marathon County, Wisconsin | 31 | 15 | 256 | 265 |
| St Lawrence County, New York | 30 | 25 | 233 | 378 |
| El Paso County, Texas | 29 | 18 | 247 | 622 |
| Hancock County, Maine | 29 | 20 | 74 | 227 |
| Hillsborough County, New Hampshire | 29 | 22 | 90 | 248 |
| La Crosse County, Wisconsin | 29 | 2 | 79 | 46 |
| Raleigh County, West Virginia | 29 | 13 | 1,367 | 6,800 |
| Clearfield County, Pennsylvania | 28 | 17 | 277 | 322 |
| Coconino County, Arizona | 28 | 24 | 218 | 269 |
| Humboldt County, California | 28 | 11 | 91 | 281 |
| Humboldt County, Nevada | 28 | 14 | 1,948 | 1,195 |
| Kanawha County, West Virginia | 28 | 17 | 653 | 4,053 |
| Kenai Peninsula, Alaska | 28 | 19 | 59 | 44 |
| Lyon County, Nevada | 28 | 19 | 406 | 421 |
| Windham County, Vermont | 28 | 12 | 58 | 98 |
| Campbell County, Wyoming | 27 | 17 | 2,926 | 2,036 |
| Mohave County, Arizona | 27 | 21 | 449 | 612 |
| Stearns County, Minnesota | 27 | 10 | 109 | 112 |
| Utah County, Utah | 27 | 20 | 217 | 712 |
| Broome County, New York | 26 | 23 | 91 | 199 |
| Cochise County, Arizona | 26 | 22 | 139 | 181 |
| Fond Du Lac County, Wisconsin | 26 | 15 | 426 | 451 |
| Cumberland County, Tennessee | 25 | 18 | 207 | 307 |
| Elko County, Nevada | 25 | 20 | 319 | 322 |
| Le Flore County, Oklahoma | 25 | 19 | 159 | 125 |
| Pima County, Arizona | 25 | 15 | 2,058 | 943 |
| Salt Lake County, Utah | 25 | 12 | 1,363 | 1,389 |
| Ada County, Idaho | 24 | 12 | 115 | 263 |
| Androscoggin County, Maine | 24 | 18 | 88 | 205 |
| Douglas County, Minnesota | 24 | 10 | 48 | 114 |
| Fayette County, West Virginia | 24 | 11 | 734 | 3,522 |
| Indiana County, Pennsylvania | 24 | 12 | 330 | 1,135 |
| Kennebec County, Maine | 24 | 16 | 56 | 174 |
| Letcher County, Kentucky | 24 | 17 | 171 | 866 |
| Manitowoc County, Wisconsin | 24 | 9 | 72 | 164 |
| New London County, Connecticut | 24 | 18 | 95 | 250 |
| Brown County, Wisconsin | 23 | 12 | 118 | 285 |
| Dickenson County, Virginia | 23 | 16 | 717 | 2,019 |
| Litchfield County, Connecticut | 23 | 12 | 115 | 565 |
| Providence County, Rhode Island | 23 | 10 | 154 | 411 |
| Rensselaer County, New York | 23 | 15 | 69 | 396 |
| Washington County, New York | 23 | 18 | 174 | 330 |
| Benton County, Minnesota | 22 | 6 | 45 | 35 |
| Cattaraugus County, New York | 22 | 15 | 98 | 193 |
| Marion County, Tennessee | 22 | 19 | 167 | 360 |
| Nye County, Nevada | 22 | 18 | 988 | 788 |
| Clinton County, New York | 21 | 10 | 43 | 83 |
| Colorado County, Texas | 21 | 14 | 200 | 449 |
| Dakota County, Minnesota | 21 | 15 | 126 | 164 |
| Eureka County, Nevada | 21 | 7 | 4,731 | 3,561 |
| Kent County, Michigan | 21 | 12 | 61 | 130 |
| Larimer County, Colorado | 21 | 19 | 154 | 411 |
| Windham County, Connecticut | 21 | 17 | 77 | 431 |
| Beltrami County, Minnesota | 20 | 6 | 40 | 79 |
| Bexar County, Texas | 20 | 14 | 536 | 720 |
| Box Elder County, Utah | 20 | 16 | 67 | 314 |
| Caledonia County, Vermont | 20 | 13 | 56 | 117 |
| Clay County, Minnesota | 20 | 9 | 61 | 65 |
| Eddy County, New Mexico | 20 | 16 | 1,086 | 1,847 |
| Essex County, New York | 20 | 17 | 85 | 385 |
| Grafton County, New Hampshire | 20 | 12 | 61 | 140 |
Operators with the most citations
Citations and orders since January 1, 2022 at their open mines.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|
| Ramaco Resources, LLC | 15 | 703 | 6,758 | $7,328,628 | 164 |
| Warrior Met Coal Mining, LLC | 4 | 1,095 | 6,589 | $6,025,404 | 134 |
| Consol Pennsylvania Coal Company LLC | 3 | 1,523 | 5,288 | $1,448,118 | 347 |
| Panther Creek Mining LLC | 12 | 488 | 5,087 | $5,085,602 | 91 |
| Nevada Gold Mines LLC | 21 | 7,024 | 4,848 | $4,681,623 | 502 |
| Holcim (US) Incorporated | 14 | 2,028 | 4,143 | $8,239,542 | 228 |
| River View Coal LLC | 3 | 846 | 4,058 | $1,746,126 | 403 |
| Martin Marietta Materials, Inc. | 229 | 4,453 | 3,927 | $1,924,475 | 410 |
| Blue Diamond Coal Co. | 6 | 279 | 3,664 | $1,713,158 | 54 |
| Crimson Oak Grove Resources LLC | 2 | 544 | 3,624 | $4,433,333 | 240 |
| Marfork Coal Company Inc | 8 | 586 | 3,537 | $4,422,276 | 151 |
| Marshall County Coal Resources, Inc. | 3 | 854 | 3,516 | $2,229,008 | 698 |
| Coal Mac East | 10 | 111 | 3,422 | $2,256,658 | 65 |
| Warrior Coal Llc | 2 | 462 | 3,265 | $1,597,327 | 174 |
| Rosebud Mining Company | 30 | 807 | 3,170 | $1,180,054 | 265 |
| Rockwell Mining LLC | 16 | 388 | 2,950 | $5,790,803 | 52 |
| Spartan Mining Company | 3 | 379 | 2,835 | $3,546,454 | 96 |
| Marion County Coal Resources, Inc. | 1 | 518 | 2,824 | $2,479,287 | 277 |
| Peabody Southeast Mining, LLC | 1 | 403 | 2,721 | $3,152,963 | 56 |
| Iron Cumberland LLC | 1 | 671 | 2,611 | $2,075,498 | 157 |
| Aracoma Coal Inc | 6 | 350 | 2,463 | $1,914,700 | 65 |
| United States Steel Corp-Minnesota Ore Operations | 3 | 1,240 | 2,422 | $5,562,652 | 184 |
| Kanawha Eagle Mining, LLC | 4 | 353 | 2,190 | $1,771,262 | 69 |
| Lehigh Cement Company LLC | 8 | 996 | 2,146 | $4,206,259 | 115 |
| Canyon Fuel Company Llc | 4 | 539 | 2,135 | $2,366,504 | 74 |
| Buchanan Minerals, LLC | 1 | 770 | 2,093 | $1,368,793 | 180 |
| Doe Run Company | 6 | 663 | 2,031 | $1,380,530 | 176 |
| Ash Grove Cement Company | 10 | 963 | 2,004 | $2,815,097 | 146 |
| Mingo Logan Coal LLC | 2 | 333 | 1,999 | $2,589,814 | 30 |
| Coal Mac Inc | 16 | 268 | 1,976 | $1,495,463 | 66 |
| Icg Beckley LLC | 2 | 74 | 1,965 | $1,303,159 | 46 |
| Knight Hawk Coal LLC | 6 | 321 | 1,839 | $1,446,528 | 115 |
| Ohio County Coal Resources, Inc. | 1 | 462 | 1,694 | $845,296 | 211 |
| Vulcan Construction Materials, LLC | 190 | 3,777 | 1,635 | $546,819 | 363 |
| Wolf Run Mining LLC | 3 | 411 | 1,625 | $1,131,503 | 40 |
| Heidelberg Materials Midwest Agg, Inc. | 41 | 722 | 1,620 | $1,070,269 | 63 |
| Tilden Mining Company, LC. | 1 | 860 | 1,620 | $1,951,044 | 78 |
| Stillwater Mining Company | 2 | 1,569 | 1,614 | $1,554,798 | 162 |
| Clintwood Jod, LLC | 8 | 3 | 1,598 | $559,796 | 12 |
| Paramont Contura, LLC | 6 | 642 | 1,508 | $766,728 | 119 |
| Frontier Coal Company, Inc. | 2 | 11 | 1,468 | $5,110,980 | 22 |
| Harrison County Coal Resources, Inc. | 1 | 400 | 1,461 | $903,384 | 186 |
| Itmann Mining Company LP | 2 | 150 | 1,418 | $1,058,978 | 65 |
| Sunrise Coal, LLC | 5 | 447 | 1,375 | $658,505 | 204 |
| Peabody Twentymile Mining LLC | 1 | 136 | 1,354 | $1,128,849 | 28 |
| M-Class Mining LLC | 1 | 197 | 1,353 | $1,416,260 | 108 |
| Peabody Gateway North Mining, LLC | 1 | 185 | 1,345 | $1,504,818 | 56 |
| Quikrete Construction Materials, LLC | 6 | 638 | 1,341 | $2,423,487 | 83 |
| Altius Construction LLC | 1 | 10 | 1,340 | $1,154,078 | 23 |
| Emery Valley Resources, LLC. | 1 | 139 | 1,333 | $1,690,317 | 42 |
| Peabody Midwest Mining, LLC | 4 | 259 | 1,315 | $824,812 | 25 |
| Nicholas Contura LLC | 3 | 224 | 1,288 | $636,596 | 50 |
| Buzzi Unicem USA | 4 | 627 | 1,284 | $2,711,147 | 105 |
| Bluegrass Natural Resources, LLC | 10 | 320 | 1,256 | $465,504 | 66 |
| Prairie State Generating Company LLC | 1 | 293 | 1,253 | $1,182,815 | 130 |
| Morton Salt Inc | 3 | 414 | 1,248 | $1,177,107 | 36 |
| Mach Mining LLC | 1 | 231 | 1,247 | $1,383,038 | 206 |
| Rogers Group Inc | 82 | 955 | 1,210 | $340,039 | 79 |
| Heidelberg Materials Northeast LLC | 54 | 617 | 1,199 | $710,777 | 71 |
| Carmeuse Lime & Stone Inc | 6 | 539 | 1,168 | $1,319,282 | 75 |
| Excel Mining LLC | 1 | 145 | 1,138 | $951,921 | 90 |
| CalPortland Company | 28 | 798 | 1,133 | $1,004,232 | 131 |
| Freeport-McMoRan Morenci Inc. | 1 | 5,870 | 1,087 | $1,230,992 | 784 |
| 101 Coal, Inc. | 7 | 26 | 1,061 | $340,846 | 29 |
| Atalco Gramercy LLC | 1 | 500 | 1,037 | $3,483,474 | 115 |
| Mountain Coal Company, L.L.C. | 1 | 275 | 1,017 | $801,847 | 46 |
| Pocahontas Coal Company | 6 | 289 | 1,013 | $422,682 | 67 |
| We Soda Alkali, LLC | 1 | 815 | 996 | $875,599 | 89 |
| CW Reclaim, LLC | 14 | 16 | 962 | $438,780 | 21 |
| Continental Cement Company, LLC | 4 | 532 | 956 | $966,162 | 49 |
| Hamilton County Coal, LLC | 2 | 374 | 925 | $536,422 | 106 |
| Leesville Land LLC | 2 | 62 | 908 | $766,202 | 25 |
| Kennecott Utah Copper LLC | 3 | 1,140 | 906 | $871,192 | 111 |
| International Minerals Carlsbad, Inc. | 1 | 467 | 887 | $1,303,370 | 34 |
| Appalachian Resource West Virginia, LLC | 5 | 122 | 885 | $1,047,630 | 16 |
| Muhlenberg County Coal Resources, Inc. | 5 | 22 | 883 | $427,053 | 55 |
| Warrior Met Coal BC, LLC | 2 | 207 | 873 | $674,803 | 33 |
| MLC | 5 | 692 | 865 | $865,253 | 75 |
| Raw Coal Mining Company, Inc. | 3 | 46 | 845 | $670,136 | 5 |
| Kingston Mining Inc. | 4 | 230 | 837 | $480,442 | 34 |
| St. Marys Cement U.S. LLC | 2 | 305 | 836 | $1,255,456 | 37 |
| Lexington Coal Company, LLC | 19 | 15 | 817 | $721,672 | 13 |
| Climax Molybdenum Company | 2 | 688 | 810 | $488,467 | 119 |
| Cemex Construction Materials Florida, LLC | 18 | 760 | 808 | $1,809,228 | 61 |
| American Soda LLC | 1 | 449 | 804 | $396,226 | 41 |
| U.S. Silica Company, LLC | 27 | 1,150 | 794 | $352,502 | 65 |
| New Enterprise Stone and Lime Co., Inc. | 37 | 471 | 775 | $171,143 | 81 |
| Nally & Hamilton Enterprises Inc | 9 | 184 | 770 | $251,748 | 41 |
| Asarco LLC, a Delaware Limited Liability Company | 4 | 1,394 | 770 | $689,527 | 147 |
| Cemex Construction Materials South LLC | 15 | 474 | 766 | $1,046,655 | 58 |
| Crucible Etn LLC | 4 | 487 | 762 | $333,033 | 67 |
| Amrize Mid-America Inc. | 24 | 303 | 745 | $276,579 | 21 |
| Cumberland Coal Corporation | 10 | 20 | 732 | $171,902 | 15 |
| Blue Creek Mining, LLC | 3 | 130 | 717 | $507,996 | 13 |
| Specialty Minerals Inc | 4 | 250 | 689 | $294,642 | 31 |
| United Taconite LLC | 2 | 362 | 672 | $1,008,845 | 53 |
| Northshore Mining Company | 2 | 495 | 670 | $625,142 | 35 |
| Heidelberg Materials Southwest LLC | 15 | 402 | 654 | $442,117 | 56 |
| Amrize South Central Inc. | 10 | 233 | 645 | $517,230 | 32 |
| Tata Chemicals Soda Ash Partners LLC | 1 | 539 | 626 | $287,540 | 38 |
Operators with the most open mines
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|
| Martin Marietta Materials, Inc. | 229 | 4,453 | 3,927 | $1,924,475 | 410 |
| Vulcan Construction Materials, LLC | 190 | 3,777 | 1,635 | $546,819 | 363 |
| Rogers Group Inc | 82 | 955 | 1,210 | $340,039 | 79 |
| River City Stone Division Of Mathy Construction Co | 73 | 187 | 135 | $27,670 | 46 |
| Heidelberg Materials Northeast LLC | 54 | 617 | 1,199 | $710,777 | 71 |
| Heidelberg Materials Midwest Agg, Inc. | 41 | 722 | 1,620 | $1,070,269 | 63 |
| New Enterprise Stone and Lime Co., Inc. | 37 | 471 | 775 | $171,143 | 81 |
| Granite Construction Company | 34 | 254 | 458 | $758,145 | 8 |
| Fisher Sand & Gravel Company | 34 | 157 | 307 | $87,256 | 21 |
| Arizona Materials | 33 | 152 | 484 | $250,871 | 29 |
| SRM Materials, LLC | 32 | 279 | 554 | $283,880 | 29 |
| Croell, Inc. | 32 | 104 | 192 | $39,999 | 14 |
| Rosebud Mining Company | 30 | 807 | 3,170 | $1,180,054 | 265 |
| Oldcastle SW Group, Inc. | 30 | 142 | 312 | $115,607 | 20 |
| CalPortland Company | 28 | 798 | 1,133 | $1,004,232 | 131 |
| Pike Industries | 28 | 148 | 147 | $31,085 | 20 |
| Michels Road & Stone, Inc. | 28 | 80 | 92 | $15,843 | 13 |
| U.S. Silica Company, LLC | 27 | 1,150 | 794 | $352,502 | 65 |
| Imi Aggregates LLC | 27 | 282 | 453 | $187,577 | 34 |
| Heidelberg Materials Southeast Agg., LLC | 27 | 443 | 391 | $103,673 | 57 |
| Staker & Parson Companies | 26 | 196 | 462 | $442,858 | 31 |
| CalMat Co | 26 | 560 | 240 | $55,896 | 42 |
| Knife River Corporation Northwest | 26 | 183 | 186 | $133,798 | 27 |
| Wendling Quarries Inc | 25 | 106 | 201 | $32,588 | 21 |
| General Shale Brick, Inc. | 25 | 81 | 77 | $11,232 | 0 |
| Amrize Mid-America Inc. | 24 | 303 | 745 | $276,579 | 21 |
| Arkhola Sand & Gravel Company | 24 | 246 | 405 | $105,519 | 54 |
| Martin Marietta Materials Southwest, LLC | 24 | 584 | 372 | $135,514 | 44 |
| Central Pre-Mix Concrete Co. | 23 | 158 | 239 | $69,433 | 34 |
| Chesapeake Materials (division/Luck Stone Corp.) | 23 | 413 | 115 | $22,267 | 22 |
| Sunroc Corporation | 22 | 95 | 207 | $43,405 | 7 |
| Nevada Gold Mines LLC | 21 | 7,024 | 4,848 | $4,681,623 | 502 |
| Bluegrass Materials Company, LLC | 20 | 299 | 142 | $22,917 | 20 |
| Bruening Rock Products Inc | 20 | 90 | 131 | $26,878 | 0 |
| Thompson Materials | 20 | 45 | 116 | $17,973 | 0 |
| Lexington Coal Company, LLC | 19 | 15 | 817 | $721,672 | 13 |
| Central Stone Company | 19 | 233 | 217 | $229,945 | 53 |
| Cemex Construction Materials Florida, LLC | 18 | 760 | 808 | $1,809,228 | 61 |
| US Aggregates LLC | 18 | 193 | 357 | $248,124 | 27 |
| Holliday Sand & Gravel Company, Inc. | 18 | 152 | 176 | $55,428 | 21 |
| Interstate Concrete and Asphalt Company | 18 | 73 | 102 | $29,324 | 9 |
| H E Hunewill Construction Company Inc | 18 | 58 | 60 | $9,092 | 1 |
| National Lime & Stone Co. | 17 | 242 | 354 | $77,493 | 40 |
| Payne & Dolan Inc | 17 | 93 | 147 | $25,649 | 31 |
| Strata Corp | 17 | 71 | 62 | $20,703 | 3 |
| Ulland Brothers Inc | 17 | 50 | 53 | $8,503 | 3 |
| Rockwell Mining LLC | 16 | 388 | 2,950 | $5,790,803 | 52 |
| Coal Mac Inc | 16 | 268 | 1,976 | $1,495,463 | 66 |
| Covia Solutions LLC | 16 | 435 | 375 | $80,892 | 53 |
| Miles Sand & Gravel Co Inc | 16 | 94 | 231 | $52,783 | 25 |
| L G Everist Inc | 16 | 166 | 169 | $28,051 | 45 |
| Mc Cullough Crushing Inc | 16 | 29 | 100 | $19,599 | 0 |
| Martin Marietta Southeast Agg Operations, LLC | 16 | 188 | 86 | $23,492 | 24 |
| Sargent Corporation | 16 | 33 | 45 | $7,366 | 2 |
| Ramaco Resources, LLC | 15 | 703 | 6,758 | $7,328,628 | 164 |
| Cemex Construction Materials South LLC | 15 | 474 | 766 | $1,046,655 | 58 |
| Heidelberg Materials Southwest LLC | 15 | 402 | 654 | $442,117 | 56 |
| Michigan Paving and Materials Company | 15 | 176 | 72 | $15,105 | 15 |
| Glenn O Hawbaker Inc | 15 | 120 | 58 | $8,660 | 11 |
| Secon | 15 | 54 | 40 | $8,083 | 3 |
| Holcim (US) Incorporated | 14 | 2,028 | 4,143 | $8,239,542 | 228 |
| CW Reclaim, LLC | 14 | 16 | 962 | $438,780 | 21 |
| Pennsy Supply Inc | 14 | 211 | 366 | $150,078 | 26 |
| Midsouth Aggregates | 14 | 156 | 159 | $36,829 | 19 |
| Simon Contractors | 14 | 53 | 135 | $27,712 | 8 |
| BMC Aggregates LC | 14 | 73 | 128 | $21,384 | 17 |
| Sustainable Land Use, LLC | 14 | 78 | 121 | $30,094 | 6 |
| Cessford Construction Company | 14 | 51 | 79 | $14,532 | 5 |
| Yahara Materials Inc | 14 | 54 | 66 | $10,254 | 0 |
| Florida Rock Industries Inc | 14 | 259 | 62 | $31,268 | 32 |
| Haas Sons Inc | 14 | 37 | 37 | $5,595 | 1 |
| Mega Highwall Mining LLC | 13 | 108 | 592 | $208,309 | 25 |
| Shelly Materials Inc | 13 | 194 | 317 | $108,221 | 25 |
| Dolese Brothers Company | 13 | 348 | 303 | $106,253 | 62 |
| Onyx Energy, LLC | 13 | 83 | 263 | $82,319 | 5 |
| Vcna Prairie LLC | 13 | 60 | 188 | $39,523 | 14 |
| A B E Materials | 13 | 170 | 179 | $30,396 | 47 |
| Geneva Rock Products Inc | 13 | 144 | 179 | $95,062 | 19 |
| Arcosa Aggregates Texas, LLC | 13 | 134 | 162 | $28,560 | 27 |
| Capital Quarries Company Inc | 13 | 65 | 96 | $18,333 | 21 |
| Melvin Stone Company Llc | 13 | 84 | 95 | $15,582 | 11 |
| Shaw Brothers Construction, Inc. | 13 | 23 | 69 | $10,104 | 0 |
| Meshoppen Stone Inc | 13 | 93 | 65 | $12,002 | 0 |
| Eurovia Atlantic Coast LLC | 13 | 47 | 44 | $7,390 | 5 |
| Northeast Asphalt Inc | 13 | 35 | 25 | $4,972 | 11 |
| Northstar Materials, Inc. | 13 | 26 | 22 | $3,268 | 3 |
| Panther Creek Mining LLC | 12 | 488 | 5,087 | $5,085,602 | 91 |
| HM Pacific Northwest Inc. | 12 | 111 | 374 | $142,314 | 19 |
| NM Energy LLC | 12 | 74 | 302 | $89,693 | 2 |
| Mid-States Materials, LLC | 12 | 100 | 185 | $50,290 | 4 |
| Apac-Mississippi Inc | 12 | 102 | 173 | $97,844 | 18 |
| Surface Minerals Company | 12 | 2 | 110 | $35,638 | 3 |
| Stoneco Inc | 12 | 140 | 107 | $21,522 | 15 |
| Cold Spring Granite Company | 12 | 111 | 85 | $20,634 | 33 |
| J. Jadin Inc | 12 | 24 | 36 | $4,759 | 0 |
| Res Coal LLC | 12 | 131 | 36 | $5,811 | 14 |
| Rock Pros USA | 11 | 51 | 381 | $261,174 | 1 |
| Amrize Great Lakes Inc. | 11 | 254 | 322 | $133,887 | 14 |
| Mulzer Crushed Stone Inc | 11 | 259 | 298 | $207,698 | 35 |
| Amrize Mid-Atlantic Inc. | 11 | 172 | 201 | $115,855 | 10 |
Citations and injury cases by year
Calendar years since 2022; 2026 runs to the date of the MSHA files.
| Year | Citations and orders | Significant and substantial | Proposed penalties | Injury and illness cases |
|---|
| 2022 | 81,645 | 15,231 | $52,999,709 | 5,354 |
| 2023 | 88,742 | 16,150 | $66,415,006 | 5,501 |
| 2024 | 88,445 | 15,335 | $65,871,680 | 5,413 |
| 2025 | 79,001 | 13,316 | $55,628,596 | 5,087 |
| 2026 | 65,421 | 11,287 | $37,794,064 | 4,310 |
Standards cited most at US mines
Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.
| Standard | What the part covers | Citations |
|---|
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 16,059 |
| 30 CFR 75.400 | Underground coal mines, safety | 14,944 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 14,847 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 13,816 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 11,463 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 10,483 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 9,896 |
| 30 CFR 75.370 | Underground coal mines, safety | 8,737 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 7,983 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 7,044 |
| 30 CFR 75.202 | Underground coal mines, safety | 6,888 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 6,755 |
| 30 CFR 75.503 | Underground coal mines, safety | 6,147 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 6,087 |
| 30 CFR 75.220 | Underground coal mines, safety | 6,009 |
Injury and illness cases at US mines
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|
| Fatality | 161 |
| Permanent disability | 269 |
| Days away from work or restricted activity | 16,916 |
| No lost time, or an occupational illness | 8,319 |
Updated November 6, 2026. Read from US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets. US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.