Coal production
0reported short tons
ACTIVE / CONTROLLER PORTFOLIO
Ares Capital Corporation; AC American Fixed Income IV L.P.; AG Energy Fu
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA CONTROLLER ID0158881
MINE PORTFOLIO
5 of 5 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 |
|---|---|---|---|---|---|---|
| Granbury Mine4104430 · Active6/8 quarters reported | Hood, TXSurface · MSHA: Construction Sand and Gravel | 0 | 242,363 | 29 | 2 | 62.3 |
| Locker Mine4105714 · Active6/8 quarters reported | Crane, TXSurface · MSHA: Construction Sand and Gravel | 0 | 71,805 | 3 | 0 | 35.3 |
| Lonestar Prospects, Ltd.4105329 · Active6/8 quarters reported | Winkler, TXSurface · MSHA: Construction Sand and Gravel | 0 | 124,206 | 27 | 1 | 204.0 |
| Portman Mine4105744 · Active6/8 quarters reported | Martin, TXSurface · MSHA: Sand, Common | 0 | 117,674 | 7 | 0 | 45.0 |
| Tolar Mine4105303 · Active6/8 quarters reported | Hood, TXSurface · MSHA: Construction Sand and Gravel | 0 | 31,034 | 5 | 0 | 27.8 |
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
5 of 5 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Granbury Mine32.54639, -97.72333Open map ↗
- Locker Mine31.57806, -102.49667Open map ↗
- Lonestar Prospects, Ltd.31.75556, -102.86389Open map ↗
- Portman Mine32.72222, -101.95833Open map ↗
- Tolar Mine32.40167, -97.90333Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-18. All 5 mines listed under this controller were checked; 5 have reports in the available quarters. Totals use current ownership.
Hours worked
587,082reported 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 | 104,478 | 0.00 | 214 | 5/5 mines reporting |
| 2025 Q2 | 0 | 102,446 | 0.00 | 200 | 5/5 mines reporting |
| 2025 Q3 | 0 | 100,393 | 0.00 | 193 | 5/5 mines reporting |
| 2025 Q4 | 0 | 104,063 | 0.00 | 189 | 5/5 mines reporting |
| 2026 Q1 | 0 | 91,480 | 0.00 | 160 | 5/5 mines reporting |
| 2026 Q2 | 0 | 84,222 | 0.00 | 165 | 5/5 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-18
Violations
7115 significant & substantial (S&S)
Accident records
30 records classified as fatality
Proposed penalties · USD
30,246.0071 of 71 violations with amounts
On-site inspection hours
374.2524 inspections · 24 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 | 18 | 2 | 9,133.00 | 1 | 0 | 7 | 116.0 |
| 2025-Q2 | 10 | 0 | 3,230.00 | 0 | 0 | 2 | 18.3 |
| 2025-Q3 | 9 | 2 | 2,594.00 | 0 | 0 | 4 | 46.3 |
| 2025-Q4 | 7 | 1 | 2,132.00 | 1 | 0 | 3 | 29.8 |
| 2026-Q1 | 11 | 7 | 3,137.00 | 0 | 0 | 3 | 85.5 |
| 2026-Q2 | 14 | 3 | 9,718.00 | 1 | 0 | 4 | 65.0 |
| 2026-Q3 | 2 | 0 | 302.00 | 0 | 0 | 1 | 13.5 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- Portman Mine · 4105744
56.12004 · $151.00 proposed
- Portman Mine · 4105744
56.12018 · $151.00 proposed
- Portman Mine · 4105744
Regular Safety and Health Inspection · 13.5 on-site hours
- Granbury Mine · 4104430
56.4201(a)(2) · $366.00 proposed
- Granbury Mine · 4104430
56.12006 · $366.00 proposed
- Granbury Mine · 4104430
56.14112(b) · $549.00 proposed
- Granbury Mine · 4104430
56.4201(a)(1) · $366.00 proposed
- Granbury Mine · 4104430
Regular Safety and Health Inspection · 16.5 on-site hours
- Tolar Mine · 4105303
Regular Safety and Health Inspection · 1.5 on-site hours
- Granbury Mine · 4104430
56.12032 · S&S · $6,037.00 proposed
- Locker Mine · 4105714
Regular Safety and Health Inspection · 5.0 on-site hours
- Locker Mine · 4105714
56.11012 · $151.00 proposed
- Lonestar Prospects, Ltd. · 4105329
56.14112 · $151.00 proposed
- Lonestar Prospects, Ltd. · 4105329
56.14107 · $151.00 proposed
- Lonestar Prospects, Ltd. · 4105329
47.44(a) · $151.00 proposed
- Lonestar Prospects, Ltd. · 4105329
56.14205 · S&S · $336.00 proposed
- Lonestar Prospects, Ltd. · 4105329
56.14205 · S&S · $504.00 proposed
- Lonestar Prospects, Ltd. · 4105329
56.14112 · $151.00 proposed
- Lonestar Prospects, Ltd. · 4105329
56.12025 · $288.00 proposed
- Lonestar Prospects, Ltd. · 4105329
56.11001 · $151.00 proposed
- Lonestar Prospects, Ltd. · 4105329
Regular Safety and Health Inspection · 42.0 on-site hours
- Lonestar Prospects, Ltd. · 4105329
HANDTOOLS (NONPOWERED) · DAYS AWAY FROM WORK ONLY
Accident narrative
Employee was in the process of tightening a belt on a conveyor. When the employee finished tightening the belt, they made a comment their hip felt uncomfortable to their supervisor. The employee notified the safety department on June 17th (6 weeks later) that their back was hurting and they had already received an MRI and Cat Scan.
- Portman Mine · 4105744
Regular Safety and Health Inspection · 13.0 on-site hours
- Portman Mine · 4105744
56.12020 · $209.00 proposed
- Locker Mine · 4105714
Regular Safety and Health Inspection · 7.5 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.
SELECTED PORTFOLIO
4 linked operators.
Relationships reflect the selected mine status and current MSHA controller/operator fields.