Thunder Basin Coal Company LLC, Black Thunder (Campbell County, WY): MSHA citation under 77.1104 (2026-05-19)
Thunder Basin Coal Company LLC (Wyoming): MSHA citation under 77.1104 (2026-05-19). Its proposed penalty of $209 is above the median of $165 (59th percentile). Dated 170 days ago, it serves as a historical benchmark. Score 20/100. As of 2026-11-04, from US DOL Mine Safety and Health Administration (MSHA) Open Government Data, company violators only.
Data as of · Compiled by Zalwin from US DOL Mine Safety and Health Administration (MSHA) Open Government Data, company violators only
proposed penalty: $209 · 59th percentile of 24,451 MshaMinePulse records · 1.3x the median
Free preview: all 13 published fields of this record are shown below. Locked: 499 related WY MshaMinePulse records and the 5-column CSV export.
| Field | Value |
|---|---|
| Company | Thunder Basin Coal Company LLC |
| Mine | Black Thunder (ID 4800977) |
| Location | Campbell County, WY |
| Commodity | Coal (Bituminous) |
| Mine type | Surface |
| Employees | 408 |
| Issued | 2026-05-19 |
| Action | Citation |
| Standard | 77.1104 |
| Significant & substantial | No |
| Negligence | Low |
| Proposed penalty | $209 |
| Contested | No |
| proposed penalty percentile | 59th of 24,451 (median $165, 1.3x median) |
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CSV columns: Company · Mine · State · Standard · Issued · official source URL
- Source agency: US DOL Mine Safety and Health Administration (MSHA) Open Government Data, company violators only
- Record date: 2026-05-19
- Data refreshed: 2026-11-04
- Refunds on request within 14 days
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LIVE PUBLIC DATA Source: US DOL Mine Safety and Health Administration (MSHA) Open Government Data, company violators only · Last refreshed: Wed, 04 Nov 2026 01:31:23 GMT
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Peer benchmark and outreach value: Thunder Basin Coal Company LLC and 601 Wyoming peers
- Wyoming MshaMinePulse records like this one: 601
- Thunder Basin Coal Company LLC's proposed penalty: 59th percentile of 24,451 records
- Timing: Low: older than 30 days
- Estimated pipeline if you contact every Wyoming peer: $120,200 (peers × rate × deal size; an estimate from your assumptions, not a forecast)
20 / 100 Safety Need Score
What is the MshaMinePulse record for Thunder Basin Coal Company LLC in Wyoming?
MSHA issued Thunder Basin Coal Company LLC a citation under 77.1104 at Black Thunder (WY) on 2026-05-19.
How does Thunder Basin Coal Company LLC compare to other Wyoming MshaMinePulse records?
Its proposed penalty of $209 sits in the upper half (59th percentile) of 24,451 records; the median is $165. It is 170 days old; check the official source for later updates before acting. Its Safety Need Score of 20/100 is modest; treat it as background rather than a priority.
Thunder Basin Coal Company LLC vs. top 3 peers
| Organization | Location | Amount | Percentile | Record date |
|---|---|---|---|---|
| Thunder Basin Coal Company LLC | WY | 209 | 59th | 2026-05-19 |
| Ranchhand Welding & Fab. Inc. | WY | 168 | 53rd | 2026-08-13 |
| Ellingford Brothers Inc | WY | 366 | 74th | 2026-08-31 |
| Peak Gravel LLC | WY | 549 | 82nd | 2026-06-09 |
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Data comes from MSHA Open Government Data files, which MSHA updates weekly; citations can appear days to weeks after issue, and proposed penalties are often blank until assessed months later. Citations can be modified, vacated or contested; confirm on the MSHA Mine Data Retrieval System. Company violators only; individual agents are excluded. Not a consumer report and may not be used for FCRA purposes. Informational only; not legal or safety advice.