MINE DETAILS
Navajo Mine
MSHA MINE ID2900097
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Navajo Mine36.52500, -108.54194Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-17. MSHA quarterly production and employment reports.
Coal production
—reported short tons
Hours worked
—reported employee hours
Tons per hour
—production ÷ hours worked
Missing values appear as —. Totals use available reports. Tons per hour requires production and hours for the same quarters and a nonzero hours total. * Striped bars mark partial mine coverage or an incomplete quarter. See the table for coverage.
Quarterly data and reporting coverage
| Quarter | Coal (short tons) | Hours worked | Tons / hour | Avg. employees | Coverage |
|---|---|---|---|---|---|
| 2025 Q1 | — | — | — | — | No report |
| 2025 Q2 | — | — | — | — | No report |
| 2025 Q3 | — | — | — | — | No report |
| 2025 Q4 | — | — | — | — | No report |
| 2026 Q1 | — | — | — | — | No report |
| 2026 Q2 | — | — | — | — | No report |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-17
Violations
231 significant & substantial (S&S)
Accident records
40 records classified as fatality
Proposed penalties · USD
10,777.0021 of 23 violations with amounts
On-site inspection hours
484.2511 inspections · 11 with hours
Counts are published records, including contractor records. * The quarter was incomplete at the snapshot date; recent counts may rise as reports arrive. — means no reported amount or hours. Portfolio totals use current membership.
Quarterly safety data
| Quarter | Violations | S&S | Proposed USD | Accident records | Fatality records | Inspections | On-site hours |
|---|---|---|---|---|---|---|---|
| 2025-Q1 | 5 | 0 | 895.00 | 1 | 0 | 1 | 3.0 |
| 2025-Q2 | 0 | 0 | — | 0 | 0 | 2 | 147.0 |
| 2025-Q3 | 9 | 0 | 2,088.00 | 0 | 0 | 1 | 4.0 |
| 2025-Q4 | 4 | 0 | 2,606.00 | 0 | 0 | 1 | 155.0 |
| 2026-Q1 | 0 | 0 | — | 1 | 0 | 0 | — |
| 2026-Q2 | 4 | 1 | 5,188.00 | 2 | 0 | 2 | 155.3 |
| 2026-Q3 | 0 | 0 | — | 0 | 0 | 3 | 9.0 |
| 2026-Q4 * | 1 | 0 | — | 0 | 0 | 1 | 11.0 |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
103 (g) Written Notification Hazard Complaint Inspectio · 11.0 on-site hours
77.502
103 (g) Written Notification Hazard Complaint Inspectio · 0.0 on-site hours
Verbal Hazard Complaint Inspections · 4.0 on-site hours
103 (g) Written Notification Hazard Complaint Inspectio · 5.0 on-site hours
HANDTOOLS (NONPOWERED) · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
While cleaning out a 24-inch water valve that was filled with weeds and poly pipe shavings, employee used a with a 3-foot alignment pry bar. Employee struck EE's left ear with the narrow-pointed section of the bar. Employee received 3 stiches to repair cartilage in ear.
77.205(c) · $151.00 proposed
77.210(c) · S&S · $4,749.00 proposed
MACHINERY · DAYS AWAY FROM WORK ONLY
Accident narrative
A hoisted dragline drag blower motor was being lowered down while suspended, the load shifted and made contact with the employee.
Non-Fatal Accident Investigation · 19.5 on-site hours
Description not reported
77.509(c) · $288.00 proposed
Regular Safety and Health Inspection · 135.8 on-site hours
SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY
Accident narrative
Employee was cleaning snow off conveyor belt walkway, after task was completed, employee removed EE's lock from Substation and proceeded to walk away from substation and slipped on an icy area twisted/fractured EE's ankle, weather conditions snowed the previous day, so the 9th was a mixture of snow and mud.
77.1101(c) · $245.00 proposed
77.1110 · $288.00 proposed
77.1110 · $1,431.00 proposed
77.1110 · $642.00 proposed
Regular Safety and Health Inspection · 155.0 on-site hours
77.1101(c) · $151.00 proposed
77.1605(b) · $193.00 proposed
77.410(c) · $151.00 proposed
77.1713(a) · $336.00 proposed
Verbal Hazard Complaint Inspections · 4.0 on-site hours
77.1110 · $432.00 proposed
Safety sources and definitions
MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-17.
Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.
Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.
S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.
Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.
Portfolio totals use current mine membership, including events before the current owner or operator's tenure.
CFR headings link to the current Title 30 index; they are not historical legal determinations.
EIA-923 · COAL RECEIPTS
Coal shipments and quality
Receipts reported by power plants and terminals, matched by MSHA mine ID.
Quarterly receipts and quality
| Quarter | Short tons | Heat · Btu/lb | Sulfur % | Ash % | Delivered USD/ton | |
|---|---|---|---|---|---|---|
| 2025-Q3 * | 968,639 | 9,190 | 0.82 | 20.30 | 66.06 | |
| 2025-Q4 | 1,392,390 | 8,931 | 0.87 | 21.13 | 64.99 | |
| 2026-Q1 | 1,203,660 | 9,020 | 0.89 | 20.85 | 66.72 | |
| 2026-Q2 | 1,055,856 | 9,029 | 0.91 | 21.40 | 59.80 | |
| 2026-Q3 * | 443,144 | 9,032 | 0.81 | 21.50 | 66.93 |
| Month / source | Receiving plant / supplier | Short tons | Delivered USD/ton | Heat · Btu/lb | Sulfur % | Ash % | Purchase | Transport |
|---|---|---|---|---|---|---|---|---|
| 2026-07EIA row 11702 · preliminary | Four Corners2442 · NM · BHP BILLITON MARKETING | 443,144 | 66.93 | 9,032 | 0.81 | 21.50 | ContractBIT | Truck |
| 2026-06EIA row 9804 · preliminary | Four Corners2442 · NM · BHP BILLITON MARKETING | 520,973 | 65.44 | 9,034 | 0.90 | 21.40 | ContractBIT | Truck |
| 2026-05EIA row 7974 · preliminary | Four Corners2442 · NM · BHP BILLITON MARKETING | 329,519 | 46.80 | 9,028 | 0.90 | 21.40 | ContractBIT | Truck |
| 2026-04EIA row 6149 · preliminary | Four Corners2442 · NM · BHP BILLITON MARKETING | 205,364 | 66.37 | 9,017 | 0.93 | 21.40 | ContractBIT | Truck |
| 2026-03EIA row 4339 · preliminary | Four Corners2442 · NM · BHP BILLITON MARKETING | 347,913 | 67.03 | 9,152 | 0.93 | 20.40 | ContractBIT | Truck |
| 2026-02EIA row 2381 · preliminary | Four Corners2442 · NM · BHP BILLITON MARKETING | 339,398 | 66.69 | 8,984 | 0.90 | 21.10 | ContractBIT | Truck |
| 2026-01EIA row 392 · preliminary | Four Corners2442 · NM · BHP BILLITON MARKETING | 516,349 | 66.54 | 8,955 | 0.85 | 21.00 | ContractBIT | Truck |
| 2025-12EIA row 34281 · final | Four Corners2442 · NM · BHP BILLITON MARKETING | 499,978 | 65.68 | 8,950 | 0.88 | 21.10 | ContractBIT | Truck |
| 2025-11EIA row 31291 · final | Four Corners2442 · NM · BHP BILLITON MARKETING | 449,618 | 65.11 | 8,985 | 0.83 | 20.90 | ContractBIT | Truck |
| 2025-10EIA row 28340 · final | Four Corners2442 · NM · BHP BILLITON MARKETING | 442,794 | 64.09 | 8,855 | 0.89 | 21.40 | ContractBIT | Truck |
| 2025-09EIA row 25267 · final | Four Corners2442 · NM · BHP BILLITON MARKETING | 469,695 | 66.24 | 9,190 | 0.82 | 20.30 | ContractBIT | Truck |
| 2025-08EIA row 22117 · final | Four Corners2442 · NM · BHP BILLITON MARKETING | 498,944 | 65.89 | 9,190 | 0.82 | 20.30 | ContractBIT | Truck |
Delivered cost includes transport and is not mine revenue. Missing prices remain blank. * Fewer than three months are published in the selected quarter. Receipts reflect the months EIA has published; an unfinished quarter is not comparable with a full quarter. Portfolio matches use current ownership.
Coverage, sources and calculations
- Reported coal receipts at EIA-923 power plants/terminals; this is not a census of mine shipments, exports or metallurgical sales.
- Matches use only the published MSHA ID, normalized to seven digits. Unidentified mine origins remain in the source table but are not assigned to a mine.
- Portfolio attribution uses current MSHA ownership, not ownership at the shipment date. Receipts and production can differ because of timing, stocks and coverage.
- Quality means are weighted by positive reported tons with that measurement. Delivered cost uses only rows with published cost, positive heat and positive tons; missing/withheld costs are never zero-filled.
- USD/ton = (cents/MMBtu ÷ 100) × MMBtu/ton. This is plant delivered cost, not mine sales price or revenue.
- Receipt month is as published, including records supplied by annual respondents. Recent months are preliminary and subject to revision. Missing rows do not prove zero shipments.
Imported releases start 2008-01. This window includes 12 published months. EIA releases · Survey instructions
- 2026 · preliminary · EIA923_Schedules_2_3_4_5_M_07_2026_21SEP2026.xlsx · Page 5 Fuel Receipts and Costs
- 2025 · final · EIA923_Schedules_2_3_4_5_M_12_2025_Final.xlsx · Page 5 Fuel Receipts and Costs
EIA ANNUAL COAL REPORT · 2024
Coal prices and estimated revenue
Annual county prices and a production-based allocation of county coal sales.
The estimate assumes each eligible mine receives its county-average price and shares county sales in proportion to production. Actual sales and prices can differ substantially. Unavailable estimates are excluded; this is not a total for the whole portfolio. Annual price data uses a separate window from the MSHA charts.
| Mine / county | Annual production · tons | County FOB · USD/ton | Est. sales · tons | Est. coal revenue · USD | Basis / availability |
|---|---|---|---|---|---|
| Navajo Mine2900097 · San Juan, New Mexico | 4,759,297 | — | — | — | County sales or price not published1 eligible mines / 1 sales respondents |
Method, assumptions and source records
- This is an annual county-sales allocation, not reported mine or company revenue. Currency is nominal USD in the source year; quantities are short tons.
- Mine share = same-year annual mine production / eligible same-county production. Estimated sales = published county sales × share. Estimated coal revenue = estimated sales × published county average FOB price.
- The model assumes eligible mines share county sales in proportion to production and receive the county-average price. Matching mine counts is a check, not proof of identical respondents. Mine quality, contracts and sales timing can differ substantially. No statistical confidence interval is implied.
- FOB excludes transport and insurance. EIA-923 delivered costs do not enter this model. No grade premium, state/national fallback, quarterly apportionment or carry-forward to a later year is applied.
- Eligibility follows the source's production threshold and excludes preparation-only and refuse operations. Withheld values, inconsistent county counts and missing/ambiguous locations produce no estimate.
- County sales are published in thousands of tons and prices to cents. Calculations retain precision, but the inputs are rounded and the allocation is approximate.
- Portfolio attribution uses current MSHA ownership, not ownership during the sales year. Covered-mine sums exclude unavailable estimates and must not be read as whole-company revenue. Coverage denominators use the annual EIA mine-production release.
Sales-reporting threshold: 50,000 short tons per mine in 2024. Withheld sales or prices stay unavailable.
EIA Table 30 · county sales and FOB prices · EIA annual mine production · Release index
Annual report released November 19, 2025. Method: county-sales-allocation-v1. JSON and CSV preserve source row numbers and file checksums.
OWNERSHIP
Operator and controller history
Current ownership comes from MSHA Mines. Historical start and end dates come from MSHA Controller and Operator History.
—
Navajo Transitional Energy Company LLCcontrolsBisti Fuels Company LLCoperatesNavajo Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 2900097—
Navajo Transitional Energy Company LLCcontrolsBHP Billiton Mine Management CompanyoperatesNavajo Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 2900097—
NACCO Industries InccontrolsBisti Fuels Company LLCoperatesNavajo Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 2900097—
Navajo NationcontrolsBHP Billiton Mine Management CompanyoperatesNavajo Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 2900097—
BHP BillitoncontrolsBHP Navajo Coal CompanyoperatesNavajo Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 2900097—
General Electric CompanycontrolsUtah International IncoperatesNavajo Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 2900097Other historical summaries · source-specific periods
RECORD SUMMARY
Production, safety and enforcement
These summaries use the periods stated on each card, independently of the reporting period above.
01 / SAFETYwatch
Accidents and injuries
207 historical accident/injury rows; 0 coded fatalities and 6,205 lost days across the published record.
ACCIDENT + INJURY RECORD21 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
1,303 violation rows across the full record; 412 carry an S&S flag and $1,187,645 appears in current assessed amounts.
ENFORCEMENT ACTIVITY101 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHwatch
Occupational health samples
1,197 coal dust; 73 coal quartz; 242 noise. 0 personal-sample rows have a published C/E ratio above 1; 3 noise rows have an action-level or PEL dose above 100%. These are separate measures, not a silica exceedance count. Silica results and sample status are shown separately.
OCCUPATIONAL EXPOSURE2K samples
coal-dust-samplesquartz-samplesnoise-samples04 / PRODUCTIONcontext
Quarterly production and employment
184K employee hours and 375 summed average employees across reported subunits in the latest published quarter.
2002-Q42.4M tons
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
119 contested-violation rows, 135 civil-penalty docket/decision rows, and 65 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE319 linked rows
conferencescontested-violationscivil-penalty-dockets-decisions06 / CONTRACTORScontext
Contractors
Contractors are linked through this mine’s violation or accident records. Their production and hours cover all their operations, so they are not included in this mine’s totals.
ENTITY-LEVEL CONTEXT52 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
268 inspection events and 18K published inspection hours across the historical record.
OVERSIGHT COVERAGE33 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 17, 2026. 73 silica records across the mine’s published history.
Coal quartz concentration
Quarterly mean · µg/m³ · not-voided samples
— No eligible measurements. * Quarter in progress. Means describe the available samples, not average exposure across the mine.
Quartz % is the sample’s quartz content; µg/m³ is its reported concentration. Personal C/E is the ratio to the limit published with that sample. Personal and area concentration units and void status are not specified in those source files.
| Date / sample | Dataset / analyte | Occupation / area | Measurement | Sample status | Published action |
|---|---|---|---|---|---|
| No silica records match these filters. Missing samples do not establish safe conditions. | |||||
Sources and interpretation
- Coal means use numeric concentrations from samples marked not voided, excluding control/invalid sample types and dates after the snapshot. Missing values remain null; reported zeroes remain zero.
- Quarterly means describe available samples, not mine-wide or worker-average exposure. Quarters with no eligible measurements remain empty; the current quarter is partial.
- Personal C/E is MSHA's published concentration-to-limit ratio. A value above 1 is not by itself a citation or a determination under the 2024 silica rule. Personal and area files do not publish a void-status field.
- Area records include bulk-dust analyses and are kept separate from personal exposure results. Their concentration units are not specified in the source dictionary.
- Missing samples do not establish safe conditions. Coal quartz percentage and concentration are separate measures. No compliance threshold is inferred for coal samples.
Coal quartz field definitions ↗Metal/nonmetal personal field definitions ↗Metal/nonmetal area field definitions ↗
EIA + TITLE 30
EIA production and cited regulations
EIA annual figures are reported separately from MSHA. Regulation links use the current eCFR snapshot.
ANNUAL COAL PRODUCTION4,759,297short tons
- LABOR HOURS
- 665,360
- AVG EMPLOYEES
- 345
- SUPPLY REGION
- Western
- UNION
- International Union Of Operation Engineers
- OPERATION
- Mine only
- COMPANY TYPE
- Operating Subsidiary
1 published EIA row aggregated under this MSHA ID. Components remain available in JSON.
30 CFR 77.502Electric equipment; examination, testing, and maintenance.1 recent row ↗30 CFR 77.205Travelways at surface installations.1 recent row ↗30 CFR 77.210Hoisting of materials.1 recent row ↗30 CFR 77.509Transformers; installation and guarding.1 recent row ↗30 CFR 77.1101Escape and evacuation; plan.2 recent rows ↗30 CFR 77.1110Examination and maintenance of firefighting equipment.3 recent rows ↗30 CFR 77.1605Loading and haulage equipment; installations.1 recent row ↗30 CFR 77.410Mobile equipment; automatic warning devices.1 recent row ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
973506877.502Citation
973505677.205(c)Citation
973504677.210(c)S&S
9735045—Order
973504477.509(c)Citation
973495577.1101(c)Citation
973495477.1110Citation
973495377.1110Citation
Coal dust, noise and other contaminants. Silica records above ↑
Coal dustBULLDOZER OPERATOR
.119 mg/m³Not voided
Coal dustBULLDOZER OPERATOR
.155 mg/m³Not voided
Coal dustHIGHWALL DRILL OPERATOR
.029 mg/m³Not voided
Coal dustBULLDOZER OPERATOR
.124 mg/m³Not voided
Coal dustHIGHWALL DRILL OPERATOR
.081 mg/m³Not voided
Coal dustBULLDOZER OPERATOR
.026 mg/m³Not voided
Coal dustBULLDOZER OPERATOR
.033 mg/m³Not voided
Coal dustBULLDOZER OPERATOR
.028 mg/m³Not voided
SOURCE COVERAGE
Reporting dates and coverage
17 datasets contain linked records. Missing datasets are listed below.
DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors207Jan 14, 2000—Jun 25, 2026mine-keyed
Addresses of Recordidentity · logistics1May 6, 1963—May 6, 1963mine-keyed
Assessed Violationscompliance · legal1,251Mar 27, 2000—Jun 3, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal135Mar 8, 2001—Sep 29, 2023mine-keyed
Coal Dust Sampleshealth · safety1,197Jan 12, 2000—Sep 21, 2026mine-keyed
Conferencescompliance · legal65Apr 18, 2002—Jul 13, 2026mine-keyed
Contested Violationscompliance · legal119Jan 21, 2004—Jan 30, 2023mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety7,339Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety1,614Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance6Jan 1, 1950—Jan 1, 2017mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance35Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance69Not published—Not publishedmine-keyed
Inspectionssafety · compliance268Mar 27, 2000—Oct 6, 2026mine-keyed
Minesidentity · production · logistics1Not published—Not publishedmine-keyed
Metal and Nonmetal Area Sampleshealth · safety—No published rowsabsent / not applicable
Metal and Nonmetal Personal Health Sampleshealth · safety—No published rowsabsent / not applicable
Noise Sampleshealth · safety · equipment242May 11, 2000—Aug 12, 2026mine-keyed
Quartz Samples — Coalhealth · safety73Jun 21, 2000—Nov 12, 2025mine-keyed
Violationscompliance · safety · legal1,303Mar 27, 2000—Oct 6, 2026mine-keyed
107(a) Orders Issuedsafety · compliance—No published rowsabsent / not applicable
NOTES
Limitations
- Contractor production is entity-level and is never represented as mine-attributable.
- Missing rows can mean no event, publication delay, identity mismatch, or inapplicability.