Data / Mines / Wyoming / Antelope Coal Mine
Antelope Coal Mine: 78 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Antelope Coal Mine is an active coal (bituminous) surface mine in Converse County, Wyoming, operated by Navajo Transitional Energy Company, LLC with 430 employees on MSHA's record (mine ID 4801337). Since January 1, 2022 MSHA inspectors issued 78 citations and orders there with $23,377 in proposed penalties, and 8 accident reports were filed there, with 7 injury or illness cases.
The request: Watch Antelope Coal Mine (MSHA mine ID 4801337) in Converse County, Wyoming: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 4801337
- Status
- Active since December 3, 1985
- Main commodity
- Coal (bituminous)
- Mine type
- Surface
- County
- Converse County, Wyoming
- Nearest town
- Douglas
- Operator
- Navajo Transitional Energy Company, LLC
- Parent company
- Navajo Transitional Energy Company LLC
- Employees
- 430
- MSHA field office
- Gillette WY Field Office
- Citations and orders since January 1, 2022
- 78
- Significant and substantial
- 12 (15.4%)
- Closure orders
- 0
- High negligence or reckless
- 2
- Proposed penalties
- $23,377
- Amount paid so far
- $23,377
- Inspections
- 16
- Inspector hours on site
- 1,228
- Citations per inspection
- 4.88 (all mines 2.30)
- Accident reports
- 8
- Injury and illness cases
- 7
- Fatalities
- 0
- Latest MSHA record
- October 27, 2026
- Citations issued to contractors here
- 6 ($1,289 proposed)
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 | 19 | 3 | $9,226 | 2 |
| 2023 | 13 | 1 | $2,549 | 2 |
| 2024 | 16 | 1 | $3,249 | 0 |
| 2025 | 20 | 4 | $5,598 | 1 |
| 2026 | 10 | 3 | $2,755 | 2 |
Standards cited most at Antelope Coal Mine
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 77.1110 | Surface coal mines, safety | 9 |
| 30 CFR 77.1605 | Surface coal mines, safety | 9 |
| 30 CFR 77.1104 | Surface coal mines, safety | 6 |
| 30 CFR 77.404 | Surface coal mines, safety | 5 |
| 30 CFR 77.1607 | Surface coal mines, safety | 5 |
| 30 CFR 77.502 | Surface coal mines, safety | 5 |
| 30 CFR 77.502-2 | Surface coal mines, safety | 4 |
| 30 CFR 77.505 | Surface coal mines, safety | 3 |
| 30 CFR 77.1606 | Surface coal mines, safety | 3 |
| 30 CFR 77.1710 | Surface coal mines, safety | 3 |
| 30 CFR 77.400 | Surface coal mines, safety | 3 |
| 30 CFR 77.800 | Surface coal mines, safety | 2 |
| 30 CFR 77.1101 | Surface coal mines, safety | 2 |
| 30 CFR 47.44 | Hazard communication | 2 |
| 30 CFR 77.516 | Surface coal mines, safety | 2 |
Injury and illness cases at Antelope Coal Mine
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 5 |
| No lost time, or an occupational illness | 2 |
What the accident reports at Antelope Coal Mine describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Machinery | 2 |
| Slip or fall of person | 2 |
| Powered haulage | 1 |
| Handtools (nonpowered) | 1 |
| Handling of materials | 1 |
| Fire | 1 |
Equipment named in accident reports at Antelope Coal Mine
| Equipment | Reports |
|---|---|
| Hand tools (powered) | 2 |
| Ore haulage trucks - off highway trucks | 1 |
| Hand tools (not powered) | 1 |
Other open mines in Converse County, Wyoming
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Douglas Quarry | Russell Construction Company | Converse County, WY | Construction sand and gravel | 3 | 20 |
| Glenrock Mine 01 | Powder River Proppants, LLC | Converse County, WY | Construction sand and gravel | 10 | 19 |
| B&M Sand and Gravel, Inc. | B&M Sand and Gravel | Converse County, WY | Construction sand and gravel | 3 | 17 |
| Glenrock Mill | Black Hills Lignite a Limited Liability Co | Converse County, WY | Leonardite | 6 | 13 |
| Crusher #1 | 383 Construction LLC | Converse County, WY | Construction sand and gravel | 2 | 12 |
| Douglas Wash Plant | Croell, Inc. | Converse County, WY | Construction sand and gravel | 3 | 11 |
| Screen #1 | 383 Construction LLC | Converse County, WY | Construction sand and gravel | 1 | 7 |
| Glenrock Mine | Black Hills Lignite a Limited Liability Co | Converse County, WY | Leonardite | 5 | 6 |
| Jaw Crusher JS3750 | Wyoming Earthmoving Corporation | Converse County, WY | Construction sand and gravel | 4 | 6 |
| West Crusher #4 | Croell, Inc. | Converse County, WY | Crushed, broken limestone | 4 | 2 |
| Dirt Crew #2 | Croell, Inc. | Converse County, WY | Construction sand and gravel | 3 | 1 |
| Q3 | Stone Royale LLC | Converse County, WY | Construction sand and gravel | 3 | 0 |
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.