MINE DETAILS

Rolling Thunder Mine

ActiveUndergroundCoal (Bituminous)

MSHA MINE ID4609111

OPERATORNicholas-Contura, LLC

CONTROLLERAlpha Metallurgical Resources Inc

LOCATIONNicholas, WV

PUBLIC RECORD3,420 linked rows

LOCATION

Mine location

1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

Rolling Thunder Mine38.28306, -81.13306Open map ↗

Quarterly trends

2025 Q1 – 2026 Q4

JSON CSV

Database snapshot · 2026-10-13. MSHA quarterly production and employment reports.

Coal production

616,930

reported short tons

2025 Q151,636
2025 Q291,277
2025 Q398,236
2025 Q457,413
2026 Q1135,673
2026 Q2182,695
2026 Q3—No usable value reported
2026 Q4 *—No usable value reported

Hours worked

255,939

reported employee hours

2025 Q140,130
2025 Q237,556
2025 Q339,804
2025 Q433,429
2026 Q146,636
2026 Q258,384
2026 Q3—No usable value reported
2026 Q4 *—No usable value reported

Tons per hour

2.41

production ÷ hours worked

2025 Q11.29
2025 Q22.43
2025 Q32.47
2025 Q41.72
2026 Q12.91
2026 Q23.13
2026 Q3—No usable value reported
2026 Q4 *—No usable value reported

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

Quarterly production, employment and reporting coverage for Rolling Thunder Mine
Quarter	Coal (short tons)	Hours worked	Tons / hour	Avg. employees	Coverage
2025 Q1	51,636	40,130	1.29	62	1/1 mines reporting
2025 Q2	91,277	37,556	2.43	64	1/1 mines reporting
2025 Q3	98,236	39,804	2.47	67	1/1 mines reporting
2025 Q4	57,413	33,429	1.72	66	1/1 mines reporting
2026 Q1	135,673	46,636	2.91	77	1/1 mines reporting
2026 Q2	182,695	58,384	3.13	97	1/1 mines reporting
2026 Q3	—	—	—	—	No report
2026 Q4	—	—	—	—	No report

Safety and enforcement

2025-01-01 – 2026-10-13

Violations

146

23 significant & substantial (S&S)

2025 Q18
2025 Q221
2025 Q319
2025 Q413
2026 Q18
2026 Q250
2026 Q327
2026 Q4 *0

Accident records

1 records classified as fatality

2025 Q10
2025 Q21
2025 Q33
2025 Q41
2026 Q10
2026 Q21
2026 Q30
2026 Q4 *0

Proposed penalties · USD

144,885.00

136 of 146 violations with amounts

2025 Q11,614
2025 Q27,150
2025 Q315,623
2025 Q43,967
2026 Q14,330
2026 Q2102,099
2026 Q310,102
2026 Q4 *—

On-site inspection hours

1,669.50

16 inspections · 16 with hours

2025 Q1154.50
2025 Q2182.75
2025 Q3196.50
2025 Q4296.75
2026 Q1232.50
2026 Q2338.75
2026 Q3267.75
2026 Q4 *0.00

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	8	0	1,614.00	0	0	1	154.5
2025-Q2	21	4	7,150.00	1	0	2	182.8
2025-Q3	19	5	15,623.00	3	0	2	196.5
2025-Q4	13	1	3,967.00	1	1	2	296.8
2026-Q1	8	2	4,330.00	0	0	1	232.5
2026-Q2	50	6	102,099.00	1	0	4	338.8
2026-Q3	27	5	10,102.00	0	0	3	267.8
2026-Q4 *	0	0	—	0	0	1	0.0

Most cited CFR sections

All violations issued in the selected period. Counts combine subsections.

Section	Violations	S&S
30 CFR 75.370Mine ventilation plan; submission and approval.	23	7
30 CFR 75.503Permissible electric face equipment; maintenance.	17	0
30 CFR 75.512Electric equipment; examination, testing and maintenance.	11	0
30 CFR 75.400Accumulation of combustible materials.	9	0
30 CFR 75.604Permanent splicing of trailing cables.	7	5
30 CFR 75.1725Machinery and equipment; operation and maintenance.	6	2
30 CFR 75.342Methane monitors.	6	1
30 CFR 75.360Preshift examination at fixed intervals.	6	0
30 CFR 75.220Roof control plan.	5	1
30 CFR 75.362On-shift examination.	4	1

Safety activity

inspection2026-10-01F016EEA
Regular Safety and Health Inspection · 0.0 on-site hours
violation2026-09-235027233
77.1104
violation2026-09-235026393
77.410(a)(1)
violation2026-09-225027232
77.1110
violation2026-09-155026392
75.1403
violation2026-09-025027229
75.1713-3
inspection2026-09-01F02D0D9
103 (g) Written Notification Hazard Complaint Inspectio · 5.0 on-site hours
violation2026-08-275183560
75.370(a)(1) · $177.00 proposed
violation2026-08-265183559
75.512 · $267.00 proposed
violation2026-08-265183558
75.370(a)(1) · $177.00 proposed
violation2026-08-265183557
75.604(b) · S&S · $959.00 proposed
violation2026-08-255026391
75.400 · $151.00 proposed
violation2026-08-255026390
75.503 · $313.00 proposed
inspection2026-08-17F00B82A
Verbal Hazard Complaint Inspections · 9.0 on-site hours
violation2026-08-175183540
75.1403
violation2026-08-175026389
75.220(a)(1) · $193.00 proposed
violation2026-08-135026388
75.900 · $151.00 proposed
violation2026-08-065183539
75.370(a)(1) · S&S · $818.00 proposed
violation2026-08-055026387
75.604(b) · S&S · $2,133.00 proposed
violation2026-08-055026386
75.512 · $267.00 proposed
violation2026-08-055026385
75.342(a)(4) · $151.00 proposed
violation2026-08-045183538
75.1719-4(b) · $151.00 proposed
violation2026-08-045183537
75.503 · $288.00 proposed
violation2026-08-045183536
75.604(b) · S&S · $2,133.00 proposed
violation2026-08-045183535
72.630(b) · $209.00 proposed

Safety sources and definitions

MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-13.

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.

REPORTED RECEIPTS · SHORT TONS—0 rows · 0 receiving plants

HEAT CONTENT · BTU/LB—Weighted by reported tons

SULFUR / ASH · % BY WEIGHT— / —Separate averages over measured receipts

DELIVERED COST · USD/TON—No price coverage

No receipts matched this mine in the selected period. EIA-923 does not cover all mine sales, exports or metallurgical coal shipments.

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.

FOB PRICE BENCHMARK · USD/TON—Published county average

ESTIMATED SALES · SHORT TONS—Allocated from published county sales

ESTIMATED COAL REVENUE · USD—Covered mines only · not reported revenue

ANNUAL PRODUCTION COVERED0.0%0 of 1 producing annual mine records

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
Rolling Thunder Mine4609111 · Nicholas, West Virginia	427,100	—	—	—	County sales or price not published3 eligible mines / 3 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.

CURRENT HIERARCHYAlpha Metallurgical Resources Inc → Nicholas-Contura, LLC → Rolling Thunder Mine

HISTORY RECORDS26 relationships

INTERVAL CHECKPASScontroller/operator overlap

Aug 30, 2022—CURRENT / OPEN

Alpha Metallurgical Resources InccontrolsNicholas-Contura, LLCoperatesRolling Thunder Mine

msha-controller-operator-history · controller/operator co-tenure derived on mine 4609111

Aug 1, 2005—Aug 29, 2022

Donn A ChickeringcontrolsPeachtree Ridge Mining Company, Inc.operatesRolling Thunder Mine

msha-controller-operator-history · controller/operator co-tenure derived on mine 4609111

Other 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

7 historical accident/injury rows; 1 coded fatalities and 305 lost days across the published record.

ACCIDENT + INJURY RECORD7 since 2021

accidentsmine-production-quarterly

02 / COMPLIANCEwatch

Violations and penalties

213 violation rows across the full record; 30 carry an S&S flag and $157,569 appears in current assessed amounts.

ENFORCEMENT ACTIVITY210 since 2021

inspectionsviolationsassessed-violationsorders-107a

03 / HEALTHwatch

Occupational health samples

2,183 coal dust; 101 coal quartz; 67 noise. 0 personal-sample rows have a published C/E ratio above 1; 12 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-samples

04 / PRODUCTIONcontext

Quarterly production and employment

58K employee hours and 97 summed average employees across reported subunits in the latest published quarter.

2026-Q2183K tons

mine-production-quarterlymine-production-yearly

05 / LEGALwatch

Contests, conferences and decisions

4 contested-violation rows, 4 civil-penalty docket/decision rows, and 9 conference records linked by issuance number.

POST-ISSUANCE LIFECYCLE17 linked rows

conferencescontested-violationscivil-penalty-dockets-decisions

06 / 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 CONTEXT4 linked entities

contractor-production-quarterlycontractor-production-yearlyaccidentsviolations

07 / INSPECTIONScontext

Inspections

33 inspection events and 5K published inspection hours across the historical record.

OVERSIGHT COVERAGE29 since 2021

inspectionsviolations

HEALTH SAMPLING

Silica and quartz

Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 13, 2026. 101 silica records across the mine’s published history.

Matching records4040 coal · 0 personal · 0 area

Sample status40 not voided0 voided · 0 status not reported

Mean coal quartz concentration22.98 µg/m³40 eligible measurements · 0 missing concentration

Coal quartz concentration

Quarterly mean · µg/m³ · not-voided samples

2026-Q130.1315 measurements
2026-Q220.6712 measurements
2026-Q316.8513 measurements
2026-Q4*—0 measurements

— 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.

2026 · Feb 9, 2026–Sep 17, 2026
Date / sample	Dataset / analyte	Occupation / area	Measurement	Sample status	Published action
Sep 17, 202658575599 / lab 2026039287	Coal quartzQuartz	SHUTTLE CAR OPERATOR (STANDARD SIDE)NON DESIGNATED OCCUPATION	17 µg/m³4.6% quartz	Not voided	Not reported
Sep 17, 202658575586 / lab 2026039285	Coal quartzQuartz	CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION	22 µg/m³5.8% quartz	Not voided	Not reported
Sep 17, 202658575301 / lab 2026039290	Coal quartzQuartz	ROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION	12 µg/m³5.9% quartz	Not voided	Not reported
Sep 8, 202658575589 / lab 2026037663	Coal quartzQuartz	OCCUPATION CODE NOT FOUNDDESIGNATED AREA	11 µg/m³4.1% quartz	Not voided	Not reported
Jul 24, 202658575609 / lab 2026031001	Coal quartzQuartz	CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION	12 µg/m³7.4% quartz	Not voided	Not reported
Jul 24, 202658575604 / lab 2026031000	Coal quartzQuartz	ROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION	52 µg/m³20.1% quartz	Not voided	Not reported
Jul 24, 202658575583 / lab 2026031002	Coal quartzQuartz	SHUTTLE CAR OPERATOR (STANDARD SIDE)NON DESIGNATED OCCUPATION	10 µg/m³7.1% quartz	Not voided	Not reported
Jul 22, 202658541227 / lab 2026030485	Coal quartzQuartz	CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION	7 µg/m³4.9% quartz	Not voided	Not reported
Jul 22, 202658541239 / lab 2026030585	Coal quartzQuartz	ROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION	17 µg/m³10.8% quartz	Not voided	Not reported
Jul 22, 202658541332 / lab 2026030579	Coal quartzQuartz	CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION	21 µg/m³6.4% quartz	Not voided	Not reported
Jul 22, 202658541228 / lab 2026030486	Coal quartzQuartz	SHUTTLE CAR OPERATOR (STANDARD SIDE)NON DESIGNATED OCCUPATION	7 µg/m³6.5% quartz	Not voided	Not reported
Jul 22, 202658541230 / lab 2026030580	Coal quartzQuartz	SHUTTLE CAR OPERATOR (STANDARD SIDE)NON DESIGNATED OCCUPATION	20 µg/m³5.7% quartz	Not voided	Not reported
Jul 22, 202658541236 / lab 2026030489	Coal quartzQuartz	ROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION	11 µg/m³7.4% quartz	Not voided	Not reported
Jun 2, 202658541215 / lab 2026024239	Coal quartzQuartz	OCCUPATION CODE NOT FOUNDDESIGNATED AREA	11 µg/m³6% quartz	Not voided	Not reported
May 6, 202658573650 / lab 2026019468	Coal quartzQuartz	SHUTTLE CAR OPERATOR (STANDARD SIDE)NON DESIGNATED OCCUPATION	21 µg/m³4.8% quartz	Not voided	Not reported
May 6, 202658573657 / lab 2026019472	Coal quartzQuartz	CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION	18 µg/m³6.1% quartz	Not voided	Not reported
May 6, 202658573616 / lab 2026019496	Coal quartzQuartz	CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION	16 µg/m³6.7% quartz	Not voided	Not reported
May 6, 202658573582 / lab 2026019495	Coal quartzQuartz	SHUTTLE CAR OPERATOR (STANDARD SIDE)NON DESIGNATED OCCUPATION	34 µg/m³3.8% quartz	Not voided	Not reported
May 6, 202658573664 / lab 2026019498	Coal quartzQuartz	SHUTTLE CAR OPERATOR (STANDARD SIDE)NON DESIGNATED OCCUPATION	8 µg/m³4.7% quartz	Not voided	Not reported
May 6, 202658573641 / lab 2026019497	Coal quartzQuartz	ROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION	15 µg/m³6.2% 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.

EIA MINE CONTEXT2024 record

ANNUAL COAL PRODUCTION427,100short tons

LABOR HOURS: 157,479
AVG EMPLOYEES: 67
SUPPLY REGION: Appalachia Central
UNION: No union code published
OPERATION: Mine only
COMPANY TYPE: Operating Subsidiary

1 published EIA row aggregated under this MSHA ID. Components remain available in JSON.

TITLE 30 CROSSWALKCurrent through 2026-08-19

30 CFR 77.1104Accumulations of combustible materials.1 recent row ↗30 CFR 77.410Mobile equipment; automatic warning devices.1 recent row ↗30 CFR 77.1110Examination and maintenance of firefighting equipment.1 recent row ↗30 CFR 75.1403Other safeguards.2 recent rows ↗30 CFR 75.1713-3First-Aid training; supervisory employees.1 recent row ↗30 CFR 75.370Mine ventilation plan; submission and approval.2 recent rows ↗30 CFR 75.512Electric equipment; examination, testing and maintenance.1 recent row ↗30 CFR 75.604Permanent splicing of trailing cables.1 recent row ↗

RECENT PUBLIC RECORDS

Recent violations and samples

Latest records retained for inspection; aggregates above use the full source history.

VIOLATIONS12 latest shown

Sep 23, 2026502723377.1104Citation

Sep 23, 2026502639377.410(a)(1)Citation

Sep 22, 2026502723277.1110Citation

Sep 15, 2026502639275.1403Safeguard

Sep 2, 2026502722975.1713-3Citation

Aug 27, 2026518356075.370(a)(1)Citation

Aug 26, 2026518355975.512Citation

Aug 26, 2026518355875.370(a)(1)Citation

OTHER HEALTH SAMPLES8 latest shown

Coal dust, noise and other contaminants. Silica records above ↑

Oct 7, 2026