ALL STATUSES / OPERATOR PORTFOLIO

CANYON FUEL COMPANY LLC

Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.

MSHA OPERATOR IDP23684

MINE PORTFOLIO

9 of 9 mines and facilities

2025-01-01 – 2026-10-18. All statuses records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
CASTLE VALLEY PREP PLANT4202455 · Active6/8 quarters reportedCarbon, UTFacility · MSHA: Coal (Bituminous)022,2760049.5
SKYLINE MINE #34201566 · Active6/8 quarters reportedCarbon, UTUnderground · MSHA: Coal (Bituminous)3,131,2031,210,611277132,590.0
SUFCO4200089 · Active6/8 quarters reportedSevier, UTUnderground · MSHA: Coal (Bituminous)5,173,8551,293,228351213,456.8
Banning Train Loadout4201756 · AbandonedCarbon, UTFacility · MSHA: Coal (Bituminous)——00—
DUGOUT4201890 · NonProducing6/8 quarters reportedCarbon, UTUnderground · MSHA: Coal (Bituminous)032,7874091.5
Dugout Canyon Mines4201888 · AbandonedCarbon, UTUnderground · MSHA: Coal (Bituminous)——00—
Dugout Canyon Mines4201889 · AbandonedCarbon, UTUnderground · MSHA: Coal (Bituminous)——00—
Skyline Mine No 14201435 · AbandonedCarbon, UTUnderground · MSHA: Coal (Bituminous)——00—
Soldier Canyon4200077 · Abandoned and SealedCarbon, UTUnderground · MSHA: Coal (Bituminous)——00—

LOCATION

Portfolio map

7 of 9 mines with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-18Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

632

63 significant & substantial (S&S)

  1. 2025 Q1106
  2. 2025 Q296
  3. 2025 Q3126
  4. 2025 Q497
  5. 2026 Q166
  6. 2026 Q256
  7. 2026 Q364
  8. 2026 Q4 *21

Accident records

34

0 records classified as fatality

  1. 2025 Q17
  2. 2025 Q26
  3. 2025 Q36
  4. 2025 Q46
  5. 2026 Q13
  6. 2026 Q21
  7. 2026 Q35
  8. 2026 Q4 *0

Proposed penalties · USD

391,486.00

587 of 632 violations with amounts

  1. 2025 Q1110,560
  2. 2025 Q242,322
  3. 2025 Q388,184
  4. 2025 Q492,179
  5. 2026 Q129,153
  6. 2026 Q215,020
  7. 2026 Q314,068
  8. 2026 Q4 *—

On-site inspection hours

6,187.75

60 inspections · 60 with hours

  1. 2025 Q1883.75
  2. 2025 Q2907.75
  3. 2025 Q31,096.25
  4. 2025 Q41,062.00
  5. 2026 Q1754.25
  6. 2026 Q2657.00
  7. 2026 Q3691.75
  8. 2026 Q4 *135.00
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q110610110,560.00704883.8
2025-Q296842,322.00607907.8
2025-Q31261388,184.0060121,096.3
2025-Q4971292,179.006081,062.0
2026-Q1661029,153.00307754.3
2026-Q256615,020.001012657.0
2026-Q364314,068.00507691.8
2026-Q4 *211—003135.0

Most cited CFR sections

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

Safety activity

  1. violation5036045
    SUFCO · 4200089

    75.512

  2. violation5036044
    SUFCO · 4200089

    75.400

  3. violation5032072
    SKYLINE MINE #3 · 4201566

    75.220(a)(1)

  4. violation5032071
    SKYLINE MINE #3 · 4201566

    75.1714-7(a)

  5. violation5036043
    SUFCO · 4200089

    75.400

  6. violation5035197
    SUFCO · 4200089

    75.601-1

  7. violation5035196
    SUFCO · 4200089

    75.360(g)

  8. violation5030954
    SKYLINE MINE #3 · 4201566

    75.1100-3

  9. violation5037235
    DUGOUT · 4201890

    77.410(a)(1)

  10. violation5037234
    DUGOUT · 4201890

    77.404(a)

  11. violation5037233
    DUGOUT · 4201890

    77.404(a)

  12. inspectionF033036
    DUGOUT · 4201890

    Regular Safety and Health Inspection · 0.0 on-site hours

  13. violation5035195
    SUFCO · 4200089

    75.360(g)

  14. violation5036165
    SUFCO · 4200089

    75.380(d)(4)

  15. violation5036164
    SUFCO · 4200089

    75.1731(b)

  16. violation5036163
    SUFCO · 4200089

    75.202(a) · S&S

  17. violation5036162
    SUFCO · 4200089

    75.1725(a)

  18. violation5036161
    SUFCO · 4200089

    75.400

  19. violation5035194
    SUFCO · 4200089

    75.400

  20. violation5035193
    SUFCO · 4200089

    75.1725(a)

  21. violation5035192
    SUFCO · 4200089

    75.370(a)(1)

  22. violation5035191
    SUFCO · 4200089

    75.400

  23. inspectionF007265
    SUFCO · 4200089

    Regular Safety and Health Inspection · 67.5 on-site hours

  24. inspectionF020381
    SKYLINE MINE #3 · 4201566

    Regular Safety and Health Inspection · 67.5 on-site hours

  25. inspectionF01E44B
    SUFCO · 4200089

    Compliance Follow-up Inspection · 2.3 on-site hours

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.

Latest EIA month: 2026-07Source checked 2026-10-18 · publication lag differs from MSHA.

REPORTED RECEIPTS · SHORT TONS4,533,75048 rows · 4 receiving plants
HEAT CONTENT · BTU/LB11,237Weighted by reported tons
SULFUR / ASH · % BY WEIGHT0.82 / 11.86Separate averages over measured receipts
DELIVERED COST · USD/TON84.6398.7% of reported tons have usable costs
Quarterly receipts and quality
QuarterShort tonsHeat · Btu/lbSulfur %Ash %Delivered USD/ton
2025-Q3 *843,00110,8901.0112.6482.41
2025-Q41,291,99911,1420.8711.8281.84
2026-Q11,001,17511,4270.6711.1785.94
2026-Q21,006,90111,3340.7712.1787.61
2026-Q3 *390,67411,5630.7511.2787.65
Month / sourceMineReceiving plant / supplierShort tonsDelivered USD/tonHeat · Btu/lbSulfur %Ash %PurchaseTransport
2026-07EIA row 12137 · preliminarySUFCO4200089Hunter6165 · UT · SUFCO315,97087.5111,4540.7011.80ContractBITTruck
2026-07EIA row 12485 · preliminarySUFCO4200089Huntington8069 · UT · SUFCO70,60888.2812,0240.979.00ContractBITTruck
2026-07EIA row 12679 · preliminaryDUGOUT CANYON MINE4201890Ashdown54104 · AR · DUGOUT4,096—Not published12,0000.499.20ContractBITRail / Truck
2026-06EIA row 10229 · preliminarySUFCO4200089Hunter6165 · UT · SUFCO312,88487.6511,4720.7011.80ContractBITTruck
2026-06EIA row 10536 · preliminarySUFCO4200089Huntington8069 · UT · SUFCO54,94190.3710,6851.0415.10ContractBITTruck
2026-06EIA row 10537 · preliminarySKYLINE MINE #34201566Huntington8069 · UT · WOLVERINE FUELS LLC.1,07090.3712,6640.519.00ContractBITTruck
2026-06EIA row 10736 · preliminaryDUGOUT CANYON MINE4201890Ashdown54104 · AR · DUGOUT5,104—Not published12,0000.499.40ContractBITRail / Truck
2026-05EIA row 8368 · preliminarySUFCO4200089Hunter6165 · UT · SUFCO236,92386.5611,3240.7011.80ContractBITTruck
2026-05EIA row 8650 · preliminarySKYLINE MINE #34201566Huntington8069 · UT · WOLVERINE FUELS LLC.39,37589.6411,5281.1310.40ContractBITTruck
2026-05EIA row 8651 · preliminarySUFCO4200089Huntington8069 · UT · SUFCO53,98389.6410,5791.1216.30ContractBITTruck
2026-05EIA row 8857 · preliminaryDUGOUT CANYON MINE4201890Ashdown54104 · AR · DUGOUT4,524—Not published12,0000.529.00ContractBITRail / Truck
2026-04EIA row 6569 · preliminarySUFCO4200089Hunter6165 · UT · SUFCO230,47987.0811,4020.7011.80ContractBITTruck
2026-04EIA row 6872 · preliminarySKYLINE MINE #34201566Huntington8069 · UT · WOLVERINE FUELS LLC.23,37887.8312,1720.378.80ContractBITTruck
2026-04EIA row 6873 · preliminarySUFCO4200089Huntington8069 · UT · SUFCO38,32487.8310,8541.2414.80ContractBITTruck
2026-04EIA row 7069 · preliminaryDUGOUT CANYON MINE4201890Ashdown54104 · AR · DUGOUT5,916—Not published12,0000.529.00ContractBITRail / Truck
2026-03EIA row 4746 · preliminarySUFCO4200089Hunter6165 · UT · SUFCO185,28386.5311,3200.7011.80ContractBITTruck
2026-03EIA row 5041 · preliminarySKYLINE MINE #34201566Huntington8069 · UT · SKYLINE MINE6,15787.5111,7710.449.10ContractBITTruck
2026-03EIA row 5042 · preliminarySUFCO4200089Huntington8069 · UT · SUFCO36,73887.5211,8471.089.40ContractBITTruck
2026-03EIA row 5241 · preliminaryDUGOUT CANYON MINE4201890Ashdown54104 · AR · DUGOUT3,596—Not published12,0000.529.00ContractBITRail / Truck
2026-02EIA row 2815 · preliminarySUFCO4200089Hunter6165 · UT · SUFCO241,22886.3611,2980.7011.80ContractBITTruck
2026-02EIA row 3139 · preliminarySKYLINE MINE #34201566Huntington8069 · UT · SKYLINE MINE35,55687.1411,9940.369.00ContractBITTruck
2026-02EIA row 3140 · preliminarySUFCO4200089Huntington8069 · UT · SUFCO41,28587.3411,7491.079.50ContractBITTruck
2026-02EIA row 3351 · preliminaryDUGOUT CANYON MINE4201890Ashdown54104 · AR · DUGOUT4,574—Not published12,0000.909.90ContractBITRail / Truck
2026-01EIA row 835 · preliminarySUFCO4200089Hunter6165 · UT · SUFCO279,75583.6311,1570.7011.80ContractBITTruck
2026-01EIA row 1163 · preliminarySUFCO4200089Huntington8069 · UT · SUFCO52,88587.6011,9570.367.90ContractBITTruck
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

Latest priced year: 2024Source checked 2026-10-18. Prices apply only to their calendar year.

FOB PRICE BENCHMARK · USD/TON—Weighted by estimated sales of covered mines
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 2 producing annual mine records
Mine / countyAnnual production · tonsCounty FOB · USD/tonEst. sales · tonsEst. coal revenue · USDBasis / availability
Soldier Canyon4200077 · Location unavailable————No matching annual production record
Sufco4200089 · Sevier, Utah3,099,164———County sales or price not published1 eligible mines / 1 sales respondents
Skyline Mine No 14201435 · Location unavailable————No matching annual production record
Skyline Mine #34201566 · Carbon, Utah2,963,808———County sales or price not published1 eligible mines / 1 sales respondents
Banning Train Loadout4201756 · Location unavailable————No matching annual production record
Dugout Canyon Mines4201888 · Location unavailable————No matching annual production record
Dugout Canyon Mines4201889 · Location unavailable————No matching annual production record
DUGOUT 4201890 · Location unavailable————No matching annual production record
Castle Valley Prep Plant4202455 · Carbon, Utah0———Preparation plant1 eligible mines / 1 sales respondents
Method, assumptions and source records
  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. 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.
  6. 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.
  7. 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.

SELECTED PORTFOLIO

1 linked controller.

Relationships reflect the selected mine status and current MSHA controller/operator fields.