Coal production
61,249,555reported short tons
ACTIVE / OPERATOR PORTFOLIO
Navajo Transitional Energy Company, LLC
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA OPERATOR ID0131153
MINE PORTFOLIO
3 of 3 mines and facilities
2025-01-01 – 2026-10-18. Active records; production reporting is not required.
Material, method and type filters apply to this table. The portfolio’s status applies to the entire page. GEM fields describe their own release, not the selected MSHA year.
| Mine | Location / type | Coal · short tons | Hours worked | Violations | Accident records | On-site inspection hours |
|---|---|---|---|---|---|---|
| Antelope Coal Mine4801337 · Active6/8 quarters reported | Converse, WYSurface · MSHA: Coal (Bituminous) | 28,674,134 | 1,120,821 | 30 | 3 | 394.8 |
| Cordero Rojo Mine4800992 · Active6/8 quarters reported | Campbell, WYSurface · MSHA: Coal (Bituminous) | 17,489,885 | 811,792 | 36 | 4 | 427.3 |
| Spring Creek Mine2401457 · Active6/8 quarters reported | Big Horn, MTSurface · MSHA: Coal (Bituminous) | 15,085,536 | 785,254 | 18 | 5 | 270.8 |
Production and hours sum available quarterly reports. — means unavailable; zero safety records means none in the selected imported period. Ownership reflects the current MSHA record.
LOCATION
Portfolio map
3 of 3 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Antelope Coal Mine43.47611, -105.35333Open map ↗
- Cordero Rojo Mine44.09611, -105.03917Open map ↗
- Spring Creek Mine45.11694, -106.89889Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-18. All 3 mines listed under this operator were checked; 3 have reports in the available quarters. Totals use current ownership.
Hours worked
2,717,867reported employee hours
Tons per hour
22.54production ÷ 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 | 9,316,818 | 431,013 | 21.62 | 878 | 3/3 mines reporting |
| 2025 Q2 | 11,013,007 | 444,556 | 24.77 | 913 | 3/3 mines reporting |
| 2025 Q3 | 11,555,396 | 459,916 | 25.13 | 914 | 3/3 mines reporting |
| 2025 Q4 | 9,610,714 | 444,975 | 21.60 | 923 | 3/3 mines reporting |
| 2026 Q1 | 10,142,383 | 460,256 | 22.04 | 922 | 3/3 mines reporting |
| 2026 Q2 | 9,611,237 | 477,151 | 20.14 | 946 | 3/3 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-18
Violations
8421 significant & substantial (S&S)
Accident records
120 records classified as fatality
Proposed penalties · USD
50,897.0081 of 84 violations with amounts
On-site inspection hours
1,092.7521 inspections · 21 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 | 11 | 3 | 7,348.00 | 1 | 0 | 1 | 91.5 |
| 2025-Q2 | 18 | 4 | 8,840.00 | 0 | 0 | 2 | 209.0 |
| 2025-Q3 | 10 | 1 | 2,606.00 | 4 | 0 | 3 | 118.3 |
| 2025-Q4 | 16 | 5 | 4,927.00 | 3 | 0 | 4 | 243.3 |
| 2026-Q1 | 13 | 4 | 20,247.00 | 0 | 0 | 3 | 97.5 |
| 2026-Q2 | 8 | 2 | 2,906.00 | 1 | 0 | 3 | 122.8 |
| 2026-Q3 | 6 | 1 | 4,023.00 | 3 | 0 | 4 | 188.0 |
| 2026-Q4 * | 2 | 1 | — | 0 | 0 | 1 | 22.5 |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- Cordero Rojo Mine · 4800992
77.404(a) · S&S
- Cordero Rojo Mine · 4800992
Regular Safety and Health Inspection · 105.3 on-site hours
- Spring Creek Mine · 2401457
Verbal Hazard Complaint Inspections · 3.5 on-site hours
- Antelope Coal Mine · 4801337
77.1104 · $151.00 proposed
- Antelope Coal Mine · 4801337
77.1102 · $193.00 proposed
- Antelope Coal Mine · 4801337
77.1710(i) · $151.00 proposed
- Antelope Coal Mine · 4801337
77.1110 · $151.00 proposed
- Antelope Coal Mine · 4801337
77.405(b) · $193.00 proposed
- Antelope Coal Mine · 4801337
77.1101(c) · $151.00 proposed
- Antelope Coal Mine · 4801337
77.800 · S&S · $959.00 proposed
- Antelope Coal Mine · 4801337
77.1710(g) · S&S · $432.00 proposed
- Antelope Coal Mine · 4801337
77.205(a) · S&S · $959.00 proposed
- Antelope Coal Mine · 4801337
77.400(a) · $288.00 proposed
- Antelope Coal Mine · 4801337
77.516 · $288.00 proposed
- Antelope Coal Mine · 4801337
77.205(a) · S&S · $432.00 proposed
- Antelope Coal Mine · 4801337
Regular Safety and Health Inspection · 130.8 on-site hours
- Spring Creek Mine · 2401457
HANDTOOLS (NONPOWERED) · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
EE was cutting rubber skirting with a box cutter style knife. The knife slipped and cut through the welding gloves they were wearing. EE received 5 sutures to close a laceration on the back of their left hand above the thumb.
- Spring Creek Mine · 2401457
MACHINERY · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
The cutoff wheel fractured during grinding, and a fragment struck the employee's right arm, causing a laceration that required sutures to close. The disc had the proper RPM rating for the grinder, and the employee was wearing all necessary PPE at the time of the incident.
- Cordero Rojo Mine · 4800992
Compliance Follow-up Inspection · 12.8 on-site hours
- Spring Creek Mine · 2401457
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
EE was replacing a single point lubricator on a plant roller bearing cap. While withdrawing their hand their right index finger contacted the zero speed sensor mount causing a laceration requiring 5 sutures to close.
- Spring Creek Mine · 2401457
Spot Inspection · 6.0 on-site hours
- Spring Creek Mine · 2401457
77.1607(b) · S&S · $1,219.00 proposed
- Spring Creek Mine · 2401457
MACHINERY · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
EE was pushing dirt off a coal fender to bury warm coal when the fender gave out and the dozer slide off sideways. The dozer overturned landing upright on the tracks. EE sustained a 1 inch laceration on their scalp requiring a suture to close.
- Spring Creek Mine · 2401457
FIRE · ACCIDENT ONLY
Accident narrative
A coal smoker was discovered in the ramp 20 waste dump. Dozer was walked over to bury the smoker. Smoker was extinguished but took longer than 30 minutes. No people, equipment or property was threatened at anytime.
- Spring Creek Mine · 2401457
77.404(a) · $151.00 proposed
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 * | 6,842,394 | 8,926 | 0.26 | 5.14 | 35.44 | |
| 2025-Q4 | 8,118,231 | 8,796 | 0.25 | 5.25 | 32.46 | |
| 2026-Q1 | 8,480,481 | 8,871 | 0.24 | 4.94 | 33.33 | |
| 2026-Q2 | 7,593,939 | 8,866 | 0.25 | 4.98 | 35.61 | |
| 2026-Q3 * | 2,388,895 | 8,845 | 0.25 | 5.20 | 36.98 |
| Month / source | Mine | Receiving plant / supplier | Short tons | Delivered USD/ton | Heat · Btu/lb | Sulfur % | Ash % | Purchase | Transport |
|---|---|---|---|---|---|---|---|---|---|
| 2026-07EIA row 11356 · preliminary | ANTELOPE COAL MINE4801337 | Holcomb108 · KS · ANTELOPE | 77,412 | 31.67 | 8,951 | 0.23 | 5.30 | ContractSUB | Rail |
| 2026-07EIA row 11515 · preliminary | ANTELOPE COAL MINE4801337 | Walter Scott Jr Energy Center1082 · IA · NAVAJO TRANSITIONAL ENERGY CO., LLC | 81,935 | 25.90 | 8,982 | 0.23 | 4.70 | ContractSUB | Rail |
| 2026-07EIA row 11521 · preliminary | ANTELOPE COAL MINE4801337 | George Neal North1091 · IA · NAVAJO TRANSITIONAL ENERGY CO., LLC | 34,938 | 41.34 | 8,971 | 0.21 | 4.80 | ContractSUB | Rail |
| 2026-07EIA row 11571 · preliminary | ANTELOPE COAL MINE4801337 | Shawnee1379 · KY · NAVAJO TRANSITIONAL ENERGY CO., LLC | 174,820 | 33.10 | 9,019 | 0.23 | 4.60 | ContractSUB | Rail |
| 2026-07EIA row 11575 · preliminary | ANTELOPE COAL MINE4801337 | Shawnee1379 · KY · NAVAJO TRANSITIONAL ENERGY CO., LLC | 111,082 | 32.10 | 8,972 | 0.22 | 5.00 | ContractSUB | Rail |
| 2026-07EIA row 11637 · preliminary | ANTELOPE COAL MINE4801337 | Monroe (MI)1733 · MI · NAVAJO | 15,836 | 41.64 | 8,952 | 0.27 | 4.70 | ContractSUB | Rail |
| 2026-07EIA row 11644 · preliminary | SPRING CREEK COAL COMPANY2401457 | Clay Boswell1893 · MN · SPRING CREEK | 77,914 | 37.44 | 9,345 | 0.35 | 5.30 | ContractSUB | Rail |
| 2026-07EIA row 11680 · preliminary | ANTELOPE COAL MINE4801337 | Sioux2107 · MO · NAVAJO TRANSITIONAL ENERGY CO., LLC | 176,194 | 41.28 | 8,985 | 0.21 | 4.70 | ContractSUB | Rail |
| 2026-07EIA row 11688 · preliminary | CORDERO MINE4800992 | North Omaha2291 · NE · NAVAJO TRANSITIONAL ENERGY CO., LLC | 16,834 | 25.76 | 8,250 | 0.28 | 6.80 | ContractSUB | Rail |
| 2026-07EIA row 11902 · preliminary | CORDERO MINE4800992 | W A Parish3470 · TX · NAVAJO TRANSITIONAL ENERGY CO., LLC | 77,294 | —Not published | 8,440 | 0.26 | 5.60 | ContractSUB | Rail |
| 2026-07EIA row 11954 · preliminary | ANTELOPE COAL MINE4801337 | South Oak Creek4041 · WI · CLOUD PEAK | 2,665 | 43.87 | 9,045 | 0.22 | 4.30 | ContractSUB | Rail |
| 2026-07EIA row 11989 · preliminary | ANTELOPE COAL MINE4801337 | James H Miller Jr6002 · AL · NTEC-KENNECOTT | 63,877 | 43.65 | 8,891 | 0.21 | 4.90 | ContractSUB | Rail |
| 2026-07EIA row 11992 · preliminary | CORDERO ROJO4800992 | James H Miller Jr6002 · AL · NTEC-KENNECOTT | 31,885 | 42.55 | 8,262 | 0.27 | 6.40 | ContractSUB | Rail |
| 2026-07EIA row 11993 · preliminary | ANTELOPE COAL MINE4801337 | James H Miller Jr6002 · AL · NTEC-KENNECOTT | 32,020 | 43.20 | 8,850 | 0.25 | 5.50 | ContractSUB | Rail |
| 2026-07EIA row 12003 · preliminary | CORDERO MINE4800992 | Newton6017 · IL · CORDERO | 48,088 | —Not published | 8,800 | 0.26 | 5.60 | ContractSUB | Rail |
| 2026-07EIA row 12051 · preliminary | ANTELOPE COAL MINE4801337 | Nearman Creek6064 · KS · ANTELOPE | 70,738 | 37.29 | 8,955 | 0.19 | 4.90 | ContractSUB | Rail |
| 2026-07EIA row 12054 · preliminary | ANTELOPE COAL MINE4801337 | Iatan6065 · MO · NAVAJO TRANSITIONAL ENERGY CO., LLC | 81,786 | 37.44 | 8,956 | 0.20 | 5.00 | ContractSUB | Rail |
| 2026-07EIA row 12060 · preliminary | CORDERO MINE4800992 | Jeffrey Energy Center6068 · KS · NAVAJO TRANSITIONAL ENERGY CO., LLC | 44,715 | 29.44 | 8,486 | 0.24 | 5.50 | ContractSUB | Rail |
| 2026-07EIA row 12108 · preliminary | CORDERO MINE4800992 | Nebraska City6096 · NE · NAVAJO TRANSITIONAL ENERGY CO., LLC | 85,814 | 22.86 | 8,480 | 0.25 | 5.70 | ContractSUB | Rail |
| 2026-07EIA row 12109 · preliminary | ANTELOPE COAL MINE4801337 | Nebraska City6096 · NE · NAVAJO TRANSITIONAL ENERGY CO., LLC | 87,514 | 26.00 | 8,940 | 0.20 | 4.70 | ContractSUB | Rail |
| 2026-07EIA row 12112 · preliminary | CORDERO MINE4800992 | Big Stone6098 · SD · NAVAJO TRIBAL AUTHORITY | 78,496 | 45.38 | 8,527 | 0.30 | 5.60 | ContractSUB | Rail |
| 2026-07EIA row 12141 · preliminary | SPRING CREEK COAL COMPANY2401457 | Coronado6177 · AZ · NAVAJO TRANSITIONAL ENERGY CO., LLC | 59,984 | 68.40 | 9,288 | 0.35 | 5.40 | ContractSUB | Rail |
| 2026-07EIA row 12147 · preliminary | ANTELOPE COAL MINE4801337 | Fayette Power Project6179 · TX · NAVAJO TRANSITIONAL ENERGY CO., LLC | 49,183 | 33.05 | 9,021 | 0.19 | 4.70 | SpotSUB | Rail |
| 2026-07EIA row 12176 · preliminary | ANTELOPE COAL MINE4801337 | Tolk6194 · TX · TUCO | 59,382 | 41.11 | 8,829 | 0.37 | 5.40 | ContractSUB | Rail |
| 2026-07EIA row 12179 · preliminary | ANTELOPE COAL MINE4801337 | John Twitty Energy Center6195 · MO · NAVAJO TRANSITIONAL ENERGY CO., LLC | 62,186 | 48.71 | 8,925 | 0.19 | 5.00 | 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. 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 |
|---|---|---|---|---|---|
| Cordero Rojo Mine4800992 · Campbell, Wyoming | 4,314,678 | 13.96 | 4,314,351 | 60,228,340 | County allocation estimate2.54% of eligible county production11 eligible mines / 11 sales respondents |
| Spring Creek Mine2401457 · Big Horn, Montana | 13,053,955 | — | — | — | County sales or price not published2 eligible mines / 2 sales respondents |
| Antelope Coal Mine4801337 · Converse, Wyoming | 14,984,446 | — | — | — | 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.
SELECTED PORTFOLIO
1 linked controller.
Relationships reflect the selected mine status and current MSHA controller/operator fields.