MINE DETAILS
Belle Ayr Mine
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Belle Ayr Mine44.10000, -105.38306Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-13. MSHA quarterly production and employment reports.
Coal production
22,971,426reported short tons
Hours worked
654,929reported employee hours
Tons per hour
35.07production ÷ 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 | 3,158,155 | 107,538 | 29.37 | 253 | 1/1 mines reporting |
| 2025 Q2 | 3,138,186 | 104,859 | 29.93 | 250 | 1/1 mines reporting |
| 2025 Q3 | 4,052,058 | 112,514 | 36.01 | 240 | 1/1 mines reporting |
| 2025 Q4 | 4,114,913 | 113,940 | 36.11 | 249 | 1/1 mines reporting |
| 2026 Q1 | 4,710,489 | 112,590 | 41.84 | 246 | 1/1 mines reporting |
| 2026 Q2 | 3,797,625 | 103,488 | 36.70 | 260 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
758 significant & substantial (S&S)
Accident records
60 records classified as fatality
Proposed penalties · USD
40,170.0074 of 75 violations with amounts
On-site inspection hours
480.505 inspections · 5 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 | 12 | 1 | 9,549.00 | 1 | 0 | 1 | 103.3 |
| 2025-Q2 | 26 | 2 | 10,970.00 | 1 | 0 | 1 | 125.0 |
| 2025-Q3 | 0 | 0 | — | 3 | 0 | 0 | — |
| 2025-Q4 | 17 | 5 | 13,828.00 | 0 | 0 | 1 | 127.8 |
| 2026-Q1 | 0 | 0 | — | 0 | 0 | 1 | 0.0 |
| 2026-Q2 | 20 | 0 | 5,823.00 | 1 | 0 | 1 | 124.5 |
| 2026-Q3 | 0 | 0 | — | 0 | 0 | 0 | — |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
77.404(a) · $226.00 proposed
77.404(a) · $226.00 proposed
77.1104 · $151.00 proposed
77.1607(bb) · $245.00 proposed
47.41(a) · $151.00 proposed
77.807 · $245.00 proposed
77.516 · $245.00 proposed
77.401(a)(2) · $245.00 proposed
77.1103(d) · $245.00 proposed
77.1101(c) · $151.00 proposed
77.1101(c) · $151.00 proposed
77.1104 · $151.00 proposed
77.1110 · $151.00 proposed
77.604 · $245.00 proposed
MACHINERY · DAYS AWAY FROM WORK ONLY
Accident narrative
After pinning the pivot bores, on a Komatsu 930e haul truck, the cranes were lowering the bed over the hoist cylinders. While lowering the bed the ear of the cylinder contacted the ear of the bed breaking the lifting eye used to retain the cylinder in position. The cylinder then contacted the left arm of technician and crushed it against the rear tire.
77.502 · $642.00 proposed
77.516 · $313.00 proposed
77.502 · $288.00 proposed
77.404(a) · $1,126.00 proposed
77.1101(c) · $313.00 proposed
77.516 · $313.00 proposed
Regular Safety and Health Inspection · 124.5 on-site hours
Verbal Hazard Complaint Inspections · 0.0 on-site hours
77.502 · $165.00 proposed
77.502 · S&S · $1,219.00 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.
Quarterly receipts and quality
| Quarter | Short tons | Heat · Btu/lb | Sulfur % | Ash % | Delivered USD/ton | |
|---|---|---|---|---|---|---|
| 2025-Q3 * | 2,631,822 | 8,565 | 0.33 | 4.88 | 29.69 | |
| 2025-Q4 | 4,185,373 | 8,578 | 0.33 | 4.60 | 28.07 | |
| 2026-Q1 | 4,669,914 | 8,576 | 0.34 | 4.71 | 27.67 | |
| 2026-Q2 | 3,752,522 | 8,547 | 0.33 | 4.69 | 27.76 | |
| 2026-Q3 * | 1,415,057 | 8,544 | 0.34 | 4.76 | 29.53 |
| Month / source | Receiving plant / supplier | Short tons | Delivered USD/ton | Heat · Btu/lb | Sulfur % | Ash % | Purchase | Transport |
|---|---|---|---|---|---|---|---|---|
| 2026-07EIA row 11391 · preliminary | Comanche (CO)470 · CO · BLUEGRASS COMMODITIES LP | 14,105 | 28.49 | 8,469 | 0.37 | 4.80 | ContractSUB | Rail |
| 2026-07EIA row 11462 · preliminary | Baldwin Energy Complex889 · IL · DYNEGY COAL TRANDING AND TRANSPORTATION | 64,077 | —Not published | 8,615 | 0.32 | 4.50 | ContractSUB | Rail |
| 2026-07EIA row 11512 · preliminary | Walter Scott Jr Energy Center1082 · IA · BLUEGRASS COMMODITIES LP | 65,582 | 22.87 | 8,528 | 0.34 | 4.70 | ContractSUB | Rail |
| 2026-07EIA row 11513 · preliminary | Walter Scott Jr Energy Center1082 · IA · BLUEGRASS COMMODITIES LP | 62,531 | 25.38 | 8,511 | 0.34 | 5.00 | ContractSUB | Rail |
| 2026-07EIA row 11519 · preliminary | George Neal North1091 · IA · BLUEGRASS COMMODITIES LP | 35,167 | 40.53 | 8,576 | 0.36 | 4.80 | ContractSUB | Rail |
| 2026-07EIA row 11520 · preliminary | George Neal North1091 · IA · BLUEGRASS COMMODITIES LP | 68,399 | 38.23 | 8,492 | 0.33 | 5.00 | ContractSUB | Rail |
| 2026-07EIA row 11687 · preliminary | North Omaha2291 · NE · BLUEGRASS COMMODITIES LP | 37,516 | 24.21 | 8,550 | 0.34 | 4.60 | ContractSUB | Rail |
| 2026-07EIA row 12089 · preliminary | Gerald Gentleman6077 · NE · BLUEGRASS COMMODITIES LP | 49,004 | 19.26 | 8,554 | 0.32 | 4.70 | ContractSUB | Rail |
| 2026-07EIA row 12090 · preliminary | Gerald Gentleman6077 · NE · BLUEGRASS COMMODITIES LP | 170,462 | 18.78 | 8,577 | 0.32 | 4.60 | ContractSUB | Rail |
| 2026-07EIA row 12107 · preliminary | Nebraska City6096 · NE · BLUEGRASS COMMODITIES LP | 120,760 | 21.33 | 8,510 | 0.33 | 4.70 | ContractSUB | Rail |
| 2026-07EIA row 12125 · preliminary | Flint Creek6138 · AR · BLUEGRASS COMMODITIES LP | 45,452 | 31.27 | 8,580 | 0.33 | 4.47 | ContractSUB | Rail |
| 2026-07EIA row 12129 · preliminary | Welsh6139 · TX · BLUEGRASS COMMODITIES LP | 75,927 | 36.26 | 8,560 | 0.33 | 4.53 | ContractSUB | Rail |
| 2026-07EIA row 12148 · preliminary | Fayette Power Project6179 · TX · BLUEGRASS COMMODITIES LP | 65,626 | 29.46 | 8,510 | 0.36 | 5.00 | SpotSUB | Rail |
| 2026-07EIA row 12149 · preliminary | Fayette Power Project6179 · TX · BLUEGRASS COMMODITIES LP | 97,226 | 29.64 | 8,543 | 0.34 | 5.00 | SpotSUB | Rail |
| 2026-07EIA row 12195 · preliminary | Ottumwa6254 · IA · BLUEGRASS COMMODITIES LP | 29,253 | 34.83 | 8,532 | 0.30 | 4.50 | ContractSUB | Rail |
| 2026-07EIA row 12197 · preliminary | Ottumwa6254 · IA · BLUEGRASS COMMODITIES LP | 74,179 | 32.90 | 8,510 | 0.33 | 4.80 | ContractSUB | Rail |
| 2026-07EIA row 12243 · preliminary | Louisa6664 · IA · BLUEGRASS COMMODITIES LP | 48,205 | 31.22 | 8,610 | 0.34 | 4.50 | ContractSUB | Rail |
| 2026-07EIA row 12244 · preliminary | Louisa6664 · IA · BLUEGRASS COMMODITIES LP | 16,257 | 33.04 | 8,529 | 0.31 | 5.60 | ContractSUB | Rail |
| 2026-07EIA row 12261 · preliminary | J K Spruce7097 · TX · BLUEGRASS COMMODITIES LP | 108,559 | 34.53 | 8,526 | 0.35 | 4.80 | ContractSUB | Rail |
| 2026-07EIA row 12317 · preliminary | George Neal South7343 · IA · BLUEGRASS COMMODITIES LP | 34,982 | 40.50 | 8,547 | 0.32 | 4.70 | ContractSUB | Rail |
| 2026-07EIA row 12319 · preliminary | George Neal South7343 · IA · BLUEGRASS COMMODITIES LP | 17,391 | 38.32 | 8,553 | 0.34 | 4.70 | ContractSUB | Rail |
| 2026-07EIA row 12436 · preliminary | Columbia (WI)8023 · WI · BLUEGRASS COMMODITIES LP | 82,065 | 42.11 | 8,527 | 0.33 | 5.00 | ContractSUB | Rail |
| 2026-07EIA row 13088 · preliminary | Plum Point Energy Station56456 · AR · BLUEGRASS COMMODITIES LP | 32,332 | —Not published | 8,615 | 0.48 | 4.70 | ContractSUB | Rail |
| 2026-06EIA row 9492 · preliminary | Comanche (CO)470 · CO · BLUEGRASS COMMODITIES LP | 14,098 | 28.10 | 8,480 | 0.35 | 4.80 | ContractSUB | Rail |
| 2026-06EIA row 9569 · preliminary | Baldwin Energy Complex889 · IL · DYNEGY COAL TRANDING AND TRANSPORTATION | 80,564 | —Not published | 8,590 | 0.30 | 4.20 | ContractSUB | Rail |
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. All producing annual records in this selection have estimates. 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 |
|---|---|---|---|---|---|
| Belle Ayr Mine4800732 · Campbell, Wyoming | 14,628,974 | 13.96 | 14,627,865 | 204,205,000 | County allocation estimate8.60% of eligible county production11 eligible mines / 11 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.
Petri E KoivulacontrolsEagle Specialty Materials LLCoperatesBelle Ayr Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 4800732Petri E Koivula et alcontrolsEagle Specialty Materials LLCoperatesBelle Ayr Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 4800732David Michael Jamison et alcontrolsEagle Specialty Materials LLCoperatesBelle Ayr Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 4800732Petri E Koivula et alcontrolsEagle Specialty Materials LLCoperatesBelle Ayr Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 4800732Mike Jamison et alcontrolsEagle Specialty Materials LLCoperatesBelle Ayr Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 4800732John McNab et alcontrolsEagle Specialty Materials LLCoperatesBelle Ayr Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 4800732Michael T CostellocontrolsEagle Specialty Materials LLCoperatesBelle Ayr Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 4800732Jeffery A HoopscontrolsBlackjewel LLCoperatesBelle Ayr Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 4800732Alpha Metallurgical Resources InccontrolsContura Coal West LLCoperatesBelle Ayr Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 4800732Alpha Natural Resources, Inc.controlsAlpha Coal West, Inc.operatesBelle Ayr Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 4800732Foundation Coal CorporationcontrolsAlpha Coal West, Inc.operatesBelle Ayr Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 4800732Rag AktiengesellschaftcontrolsAlpha Coal West, Inc.operatesBelle Ayr Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 4800732Cyprus Amax Minerals CompanycontrolsAmax Coal West IncoperatesBelle Ayr Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 4800732Other 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.
Accidents and injuries
193 historical accident/injury rows; 1 coded fatalities and 3,177 lost days across the published record.
accidentsmine-production-quarterlyViolations and penalties
731 violation rows across the full record; 134 carry an S&S flag and $342,372 appears in current assessed amounts.
inspectionsviolationsassessed-violationsorders-107aOccupational health samples
685 coal dust; 66 coal quartz; 201 noise. 0 personal-sample rows have a published C/E ratio above 1; 17 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.
coal-dust-samplesquartz-samplesnoise-samplesQuarterly production and employment
103K employee hours and 260 summed average employees across reported subunits in the latest published quarter.
mine-production-quarterlymine-production-yearlyContests, conferences and decisions
41 contested-violation rows, 43 civil-penalty docket/decision rows, and 25 conference records linked by issuance number.
conferencescontested-violationscivil-penalty-dockets-decisionsContractors
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.
contractor-production-quarterlycontractor-production-yearlyaccidentsviolationsInspections
142 inspection events and 9K published inspection hours across the historical record.
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 13, 2026. 66 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 |
|---|---|---|---|---|---|
| 58541934 / lab 2026015211 | Coal quartzQuartz | BULLDOZER OPERATORDESIGNATED WORK POSITION | 7 µg/m³7.9% quartz | Not voided | Not reported |
| 58541948 / lab 2026015206 | Coal quartzQuartz | HIGHWALL DRILL OPERATORDESIGNATED WORK POSITION | 5 µg/m³0.8% 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.
- LABOR HOURS
- 464,947
- AVG EMPLOYEES
- 256
- SUPPLY REGION
- Powder River Basin
- UNION
- No union code published
- OPERATION
- Mine and Preparation Plant
- COMPANY TYPE
- Independent Producer Operator
1 published EIA row aggregated under this MSHA ID. Components remain available in JSON.
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
Coal dust, noise and other contaminants. Silica records above ↑
SOURCE COVERAGE
Reporting dates and coverage
17 datasets contain linked records. Missing datasets are listed below.
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.