MINE DETAILS
DUGOUT
MSHA MINE ID4201890
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- DUGOUT39.68250, -110.54389Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-18. MSHA quarterly production and employment reports.
Coal production
0reported short tons
Hours worked
32,787reported employee hours
Tons per hour
0.00production ÷ 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 | 0 | 3,615 | 0.00 | 10 | 1/1 mines reporting |
| 2025 Q2 | 0 | 5,123 | 0.00 | 10 | 1/1 mines reporting |
| 2025 Q3 | 0 | 4,738 | 0.00 | 9 | 1/1 mines reporting |
| 2025 Q4 | 0 | 5,947 | 0.00 | 12 | 1/1 mines reporting |
| 2026 Q1 | 0 | 5,713 | 0.00 | 12 | 1/1 mines reporting |
| 2026 Q2 | 0 | 7,651 | 0.00 | 12 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-18
Violations
40 significant & substantial (S&S)
Accident records
00 records classified as fatality
Proposed penalties · USD
151.001 of 4 violations with amounts
On-site inspection hours
91.5011 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 | 0 | 0 | — | 0 | 0 | 1 | 10.0 |
| 2025-Q2 | 0 | 0 | — | 0 | 0 | 1 | 10.0 |
| 2025-Q3 | 0 | 0 | — | 0 | 0 | 3 | 18.0 |
| 2025-Q4 | 0 | 0 | — | 0 | 0 | 1 | 8.5 |
| 2026-Q1 | 0 | 0 | — | 0 | 0 | 1 | 15.0 |
| 2026-Q2 | 1 | 0 | 151.00 | 0 | 0 | 2 | 15.8 |
| 2026-Q3 | 0 | 0 | — | 0 | 0 | 1 | 14.3 |
| 2026-Q4 * | 3 | 0 | — | 0 | 0 | 1 | 0.0 |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
No matching records in this period.
Safety sources and definitions
MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-18.
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 * | 11,716 | 12,000 | 0.86 | 10.50 | — | |
| 2025-Q4 | 14,848 | 12,000 | 0.86 | 10.80 | — | |
| 2026-Q1 | 14,086 | 12,000 | 0.77 | 10.05 | — | |
| 2026-Q2 | 15,544 | 12,000 | 0.51 | 9.13 | — | |
| 2026-Q3 * | 4,096 | 12,000 | 0.49 | 9.20 | — |
| Month / source | Receiving plant / supplier | Short tons | Delivered USD/ton | Heat · Btu/lb | Sulfur % | Ash % | Purchase | Transport |
|---|---|---|---|---|---|---|---|---|
| 2026-07EIA row 12679 · preliminary | Ashdown54104 · AR · DUGOUT | 4,096 | —Not published | 12,000 | 0.49 | 9.20 | ContractBIT | Rail / Truck |
| 2026-06EIA row 10736 · preliminary | Ashdown54104 · AR · DUGOUT | 5,104 | —Not published | 12,000 | 0.49 | 9.40 | ContractBIT | Rail / Truck |
| 2026-05EIA row 8857 · preliminary | Ashdown54104 · AR · DUGOUT | 4,524 | —Not published | 12,000 | 0.52 | 9.00 | ContractBIT | Rail / Truck |
| 2026-04EIA row 7069 · preliminary | Ashdown54104 · AR · DUGOUT | 5,916 | —Not published | 12,000 | 0.52 | 9.00 | ContractBIT | Rail / Truck |
| 2026-03EIA row 5241 · preliminary | Ashdown54104 · AR · DUGOUT | 3,596 | —Not published | 12,000 | 0.52 | 9.00 | ContractBIT | Rail / Truck |
| 2026-02EIA row 3351 · preliminary | Ashdown54104 · AR · DUGOUT | 4,574 | —Not published | 12,000 | 0.90 | 9.90 | ContractBIT | Rail / Truck |
| 2026-01EIA row 1384 · preliminary | Ashdown54104 · AR · DUGOUT | 5,916 | —Not published | 12,000 | 0.83 | 10.80 | ContractBIT | Rail / Truck |
| 2025-12EIA row 35744 · final | Ashdown54104 · AR · DUGOUT | 4,176 | —Not published | 12,000 | 0.86 | 10.80 | ContractBIT | Rail / Truck |
| 2025-11EIA row 32729 · final | Ashdown54104 · AR · DUGOUT | 5,684 | —Not published | 12,000 | 0.86 | 10.80 | ContractBIT | Rail / Truck |
| 2025-10EIA row 29790 · final | Ashdown54104 · AR · DUGOUT | 4,988 | —Not published | 12,000 | 0.86 | 10.80 | ContractBIT | Rail / Truck |
| 2025-09EIA row 26728 · final | Ashdown54104 · AR · DUGOUT | 3,944 | —Not published | 12,000 | 0.86 | 10.50 | ContractBIT | Rail / Truck |
| 2025-08EIA row 23640 · final | Ashdown54104 · AR · DUGOUT | 7,772 | —Not published | 12,000 | 0.86 | 10.50 | ContractBIT | Rail / 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. 1 current coal members have no matching annual record; their coverage is unknown. 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 |
|---|---|---|---|---|---|
| DUGOUT 4201890 · Location unavailable | — | — | — | — | No matching annual production record |
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.
—
Wolverine Fuels LLCcontrolsCanyon Fuel Company LLCoperatesDUGOUT
msha-controller-operator-history · controller/operator co-tenure derived on mine 4201890—
Arch Resources InccontrolsCanyon Fuel Company LLCoperatesDUGOUT
msha-controller-operator-history · controller/operator co-tenure derived on mine 4201890—
El Paso Energy CorpcontrolsSoldier Creek Coal CompanyoperatesDUGOUT
msha-controller-operator-history · controller/operator co-tenure derived on mine 4201890—
Sunoco, Inc.controlsSunedco Coal CompanyoperatesDUGOUT
msha-controller-operator-history · controller/operator co-tenure derived on mine 4201890Other 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 / SAFETYneutral
Accidents and injuries
114 historical accident/injury rows; 0 coded fatalities and 2,192 lost days across the published record.
ACCIDENT + INJURY RECORD0 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
2,254 violation rows across the full record; 667 carry an S&S flag and $1,187,952 appears in current assessed amounts.
ENFORCEMENT ACTIVITY17 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHwatch
Occupational health samples
5,439 coal dust; 347 coal quartz; 549 noise. 0 personal-sample rows have a published C/E ratio above 1; 70 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 EXPOSURE6K samples
coal-dust-samplesquartz-samplesnoise-samples04 / PRODUCTIONcontext
Quarterly production and employment
8K employee hours and 12 summed average employees across reported subunits in the latest published quarter.
2026-Q20 tons
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
117 contested-violation rows, 121 civil-penalty docket/decision rows, and 25 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE263 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 CONTEXT17 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
1,312 inspection events and 42K published inspection hours across the historical record.
OVERSIGHT COVERAGE30 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 18, 2026. 347 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 |
|---|---|---|---|---|---|
| 58544833 / lab 2026042139 | Coal quartzQuartz | BULLDOZER OPERATORDESIGNATED WORK POSITION | 1 µg/m³0.6% quartz | Not voided | Not reported |
| 58542530 / lab 2026031744 | Coal quartzQuartz | MECHANICDESIGNATED WORK POSITION | 0 µg/m³—% quartz | Not voided | Not reported |
| 58542517 / lab 2026031743 | Coal quartzQuartz | BULLDOZER OPERATORDESIGNATED WORK POSITION | 8 µg/m³2% quartz | Not voided | Not reported |
| 58538286 / lab 2026025283 | Coal quartzQuartz | MECHANICDESIGNATED WORK POSITION | 0 µg/m³—% quartz | Not voided | Not reported |
| 58538404 / lab 2026025287 | Coal quartzQuartz | BULLDOZER OPERATORDESIGNATED WORK POSITION | 19 µg/m³7% quartz | Not voided | Not reported |
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.
Not present in the 2024 EIA coal workbook.
This can mean the operation is non-coal, inactive for the annual period, or outside the EIA-7A reporting population.
30 CFR 77.410Mobile equipment; automatic warning devices.1 recent row ↗30 CFR 77.404Machinery and equipment; operation and maintenance.2 recent rows ↗30 CFR 77.704-8Protective equipment; testing and storage.1 recent row ↗30 CFR 77.904Identification of circuit breakers.1 recent row ↗30 CFR 77.215Refuse piles; construction requirements.2 recent rows ↗30 CFR 77.1605Loading and haulage equipment; installations.2 recent rows ↗30 CFR 77.1110Examination and maintenance of firefighting equipment.2 recent rows ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
503723577.410(a)(1)Citation
503723477.404(a)Citation
503723377.404(a)Citation
503560977.704-8(a)(5)Citation
973378377.904Citation
973058777.215(c)Citation
915979177.1605(k)S&S
973004277.1110Citation
Coal dust, noise and other contaminants. Silica records above ↑
Coal dustMECHANIC
.113 mg/m³Not voided
Coal dustMECHANIC
.05 mg/m³Not voided
Coal dustMECHANIC
.041 mg/m³Not voided
Coal dustBULLDOZER OPERATOR
.201 mg/m³Not voided
Coal dustFORKLIFT OPERATOR
.155 mg/m³Not voided
NoiseBULLDOZER OPERATOR
PEL dose: 7%Action-level dose: 19%
NoiseMECHANIC
PEL dose: 1%Action-level dose: 8%
NoiseFORKLIFT OPERATOR
PEL dose: 5%Action-level dose: 12%
SOURCE COVERAGE
Reporting dates and coverage
17 datasets contain linked records. Missing datasets are listed below.
DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors114Feb 11, 2000—Jul 23, 2020mine-keyed
Addresses of Recordidentity · logistics1Sep 16, 2019—Sep 16, 2019mine-keyed
Assessed Violationscompliance · legal2,202Jan 14, 2000—Jun 16, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal121Sep 18, 2000—Mar 4, 2021mine-keyed
Coal Dust Sampleshealth · safety5,439Jan 11, 2000—Oct 7, 2026mine-keyed
Conferencescompliance · legal25Apr 6, 2000—Feb 21, 2025mine-keyed
Contested Violationscompliance · legal117Mar 29, 2004—Jul 15, 2019mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety3,443Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety762Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance4Nov 1, 1983—Jun 1, 1998mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance273Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance69Not published—Not publishedmine-keyed
Inspectionssafety · compliance1,312Jan 14, 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 · equipment549Mar 21, 2001—Oct 7, 2026mine-keyed
Quartz Samples — Coalhealth · safety347Feb 28, 2000—Oct 7, 2026mine-keyed
Violationscompliance · safety · legal2,254Jan 14, 2000—Oct 7, 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.