Thunder Basin Coal Company LLC, Black Thunder (Campbell County, WY): MSHA citation under 77.502 (2026-05-20)
Thunder Basin Coal Company LLC (Wyoming): MSHA citation under 77.502 (2026-05-20). Its proposed penalty of $465 is above the median of $165 (79th percentile). Dated 169 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: $465 · 79th percentile of 24,451 MshaMinePulse records · 2.8x 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 | 2026-05-20 |
| Action | Citation |
| Standard | 77.502 |
| Significant & substantial | No |
| Negligence | Mod |
| Proposed penalty | $465 |
| Contested | No |
| proposed penalty percentile | 79th of 24,451 (median $165, 2.8x median) |
| Peer records CSV (500 WY records) | 🔒 Click to unlock → |
| CRM-ready export with official source URLs | 🔒 Click to unlock → |
Watch Thunder Basin Coal Company LLC
Free email alert. Alert me when this company gets a new filing, lien, permit, contract or expiry in this feed. One confirmation email; unsubscribe any time.
Free for 1 company. More companies from $9/mo (25), $49/mo (500 + CSV), $199/mo (500 + CSV + API). Cancel any time from the link in every email.
Unlock Thunder Basin Coal Company + 500 WY peer records (CSV)
Instant CSV download · Card, Apple Pay, Google Pay or Link via Stripe · No account required
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: 2026-05-20
- Data refreshed: 2026-11-04
- Refunds on request within 14 days
Top MshaMinePulse records (WY first): American Soda LLC, American Soda LLC (Sweetwater County, WY) · American Soda LLC, American Soda LLC (Sweetwater County, WY) · American Colloid Company, COLONY WEST MILL (Crook County, WY · American Colloid Company, COLONY WEST MILL (Crook County, WY · American Colloid Company, COLONY WEST MILL (Crook County, WY · Browse all by state and category →
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
Is this your business? Add a "Listed on Zalwin" badge to your site
Paste this snippet into your website. It links to this public record; nothing is tracked on your site.
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: 79th 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 77.502 at Black Thunder (WY) on 2026-05-20.
How does Thunder Basin Coal Company LLC compare to other Wyoming MshaMinePulse records?
Its proposed penalty of $465 sits in the upper half (79th percentile) of 24,451 records; the median is $165. It is 169 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 | 465 | 79th | 2026-05-20 |
| Peak Gravel LLC | WY | 549 | 82nd | 2026-06-09 |
| Ellingford Brothers Inc | WY | 366 | 74th | 2026-08-31 |
| Peak Gravel LLC | WY | 610 | 83rd | 2026-06-09 |
Related records
MshaMinePulse: records in Wyoming MshaMinePulse: Coal MshaMinePulse: Citation
More Wyoming public-record feeds
New Trucking Company Registrations in Wyoming Newly Posted IRS Automatic Revocations of Tax Exemption in Wyoming New, Terminating & Large 401(k) Plans from Form 5500 Filings in Wyoming New IPO Filings (SEC S-1 & F-1) by Industry & State in Wyoming Bank Branch Openings, Closings & Mergers by State in Wyoming Largest U.S. Greenhouse Gas Emitters by Company, Sector & State (EPA GHGRP) in Wyoming Credit Union Quarterly Changes, Mergers & New Charters (NCUA Call Reports) in Wyoming Carrier Out-of-Service Alerts in Wyoming
How to monitor Thunder Basin Coal Company LLC and peer coal records
Get new MshaMinePulse records like Thunder Basin Coal Company LLC by email (free, weekly)
We email one confirmation link now; the weekly digest starts only after you confirm. One-click unsubscribe in every email.
Double opt-in: nothing is sent until you click the confirmation link. One-click unsubscribe.
Get new citations in your territory every week
MshaMinePulse can email you new MSHA citations for your states, sectors and standards.
✓ Read-only, live public data · Key and unlock right after payment · Card, Apple Pay, Google Pay or Link via Stripe · Refunds on request within 14 days
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.