Coal production
0reported short tons
ACTIVE / OPERATOR PORTFOLIO
ARKHOLA
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA OPERATOR IDL11502
MINE PORTFOLIO
22 of 22 mines and facilities
2025-01-01 – 2026-10-13. 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 |
|---|---|---|---|---|---|---|
| Arkhola Dredge & Plant0300379 · Active6/8 quarters reported | Crawford, ARSurface · MSHA: Construction Sand and Gravel | 0 | 92,782 | 8 | 2 | 75.0 |
| Avoca Quarry & Plant0300437 · Active6/8 quarters reported | Benton, ARSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 23,138 | 8 | 0 | 29.5 |
| Conco Mobile Plant2302603 · Active2/8 quarters reported | Dallas, MOSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 4,808 | 0 | 0 | 16.5 |
| Conco Willard Quarries2300035 · Active6/8 quarters reported | Greene, MOSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 95,943 | 22 | 0 | 72.3 |
| East Quarry3400050 · Active6/8 quarters reported | Tulsa, OKSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 135,138 | 27 | 3 | 105.5 |
| Gore Quarry3401713 · Active6/8 quarters reported | Sequoyah, OKSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 146,942 | 14 | 9 | 56.8 |
| Gravette Quarry0302012 · Active6/8 quarters reported | Benton, ARSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 72,332 | 16 | 2 | 50.8 |
| Hard Rock Quarry0302018 · Active6/8 quarters reported | Marion, ARSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 12,181 | 0 | 0 | 18.8 |
| Hindsville Quarry & Plant0301807 · Active6/8 quarters reported | Washington, ARSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 51,525 | 12 | 0 | 47.3 |
| Jenny Lind Quarry0300429 · Active6/8 quarters reported | Sebastian, ARSurface · MSHA: Crushed, Broken Sandstone | 0 | 25,079 | 2 | 1 | 25.5 |
| Midland Quarry0301974 · Active6/8 quarters reported | Sebastian, ARSurface · MSHA: Crushed, Broken Sandstone | 0 | 17,758 | 0 | 0 | 20.0 |
| Mountain Home Materials Quarry0301908 · Active6/8 quarters reported | Baxter, ARSurface · MSHA: Crushed, Broken Stone NEC | 0 | 29,703 | 4 | 0 | 38.5 |
| Muskogee Dredge3400394 · Active6/8 quarters reported | Muskogee, OKSurface · MSHA: Construction Sand and Gravel | 0 | 57,183 | 41 | 0 | 94.0 |
| North Harrison Quarry0301895 · Active6/8 quarters reported | Boone, ARSurface · MSHA: Crushed, Broken Stone NEC | 0 | 14,768 | 1 | 0 | 27.5 |
| Okay Quarry3401761 · Active6/8 quarters reported | Wagoner, OKSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 35,596 | 5 | 1 | 37.0 |
| Pawhuska Quarry3400040 · Active6/8 quarters reported | Osage, OKSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 40,209 | 2 | 1 | 34.0 |
| Portable #2 Plant 14000301921 · Active6/8 quarters reported | Washington, OKSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 42,901 | 10 | 2 | 43.5 |
| Preston Quarry0301462 · Active6/8 quarters reported | Crawford, ARSurface · MSHA: Crushed, Broken Sandstone | 0 | 76,670 | 5 | 1 | 49.5 |
| Roberts Quarry3401130 · Active6/8 quarters reported | Cherokee, OKSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 46,017 | 21 | 0 | 49.8 |
| Sharps Quarry & Plant0301583 · Active6/8 quarters reported | Benton, ARSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 81,728 | 26 | 1 | 75.0 |
| Valley Springs Quarry0300040 · Active6/8 quarters reported | Boone, ARSurface · MSHA: Crushed, Broken Stone NEC | 0 | 28,355 | 4 | 1 | 52.5 |
| Vinita Quarry3400893 · Active6/8 quarters reported | Craig, OKSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 42,695 | 19 | 0 | 36.8 |
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
22 of 22 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Arkhola Dredge & Plant35.42722, -94.35111Open map ↗
- Avoca Quarry & Plant36.40083, -94.05917Open map ↗
- Conco Mobile Plant37.52972, -93.13139Open map ↗
- Conco Willard Quarries37.27972, -93.39694Open map ↗
- East Quarry36.20639, -95.83306Open map ↗
- Gore Quarry35.52917, -95.11722Open map ↗
- Gravette Quarry36.46083, -94.38222Open map ↗
- Hard Rock Quarry36.30972, -92.65250Open map ↗
- Hindsville Quarry & Plant36.21556, -93.92417Open map ↗
- Jenny Lind Quarry35.24167, -94.32361Open map ↗
- Midland Quarry35.13139, -94.33250Open map ↗
- Mountain Home Materials Quarry36.27361, -92.26750Open map ↗
- Muskogee Dredge35.74778, -95.36972Open map ↗
- North Harrison Quarry36.29250, -93.19028Open map ↗
- Okay Quarry35.85056, -95.31833Open map ↗
- Pawhuska Quarry36.66556, -96.37639Open map ↗
- Portable #2 Plant 140036.06528, -94.16056Open map ↗
- Preston Quarry35.46639, -94.28083Open map ↗
- Roberts Quarry35.79889, -95.04444Open map ↗
- Sharps Quarry & Plant36.22611, -94.17917Open map ↗
- Valley Springs Quarry36.27361, -93.14972Open map ↗
- Vinita Quarry36.62694, -95.05333Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-13. All 22 mines listed under this operator were checked; 22 have reports in the available quarters. Totals use current ownership.
Hours worked
1,173,451reported 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 | 181,544 | 0.00 | 325 | 21/22 mines reporting |
| 2025 Q2 | 0 | 192,635 | 0.00 | 333 | 21/22 mines reporting |
| 2025 Q3 | 0 | 199,739 | 0.00 | 327 | 21/22 mines reporting |
| 2025 Q4 | 0 | 192,028 | 0.00 | 325 | 21/22 mines reporting |
| 2026 Q1 | 0 | 198,870 | 0.00 | 331 | 22/22 mines reporting |
| 2026 Q2 | 0 | 208,635 | 0.00 | 341 | 22/22 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
24738 significant & substantial (S&S)
Accident records
240 records classified as fatality
Proposed penalties · USD
160,097.00237 of 247 violations with amounts
On-site inspection hours
1,055.75105 inspections · 105 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 | 49 | 7 | 99,578.00 | 2 | 0 | 13 | 126.0 |
| 2025-Q2 | 46 | 2 | 10,562.00 | 3 | 0 | 17 | 182.5 |
| 2025-Q3 | 18 | 3 | 5,789.00 | 6 | 0 | 17 | 118.8 |
| 2025-Q4 | 32 | 6 | 7,939.00 | 4 | 0 | 13 | 135.0 |
| 2026-Q1 | 37 | 7 | 17,416.00 | 4 | 0 | 16 | 122.0 |
| 2026-Q2 | 40 | 7 | 14,474.00 | 3 | 0 | 17 | 229.8 |
| 2026-Q3 | 22 | 6 | 4,339.00 | 2 | 0 | 9 | 129.3 |
| 2026-Q4 * | 3 | 0 | — | 0 | 0 | 3 | 12.5 |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- Hindsville Quarry & Plant · 0301807
46.9(a)
- Hindsville Quarry & Plant · 0301807
56.12004
- Hindsville Quarry & Plant · 0301807
Verbal Hazard Complaint Inspections · 4.5 on-site hours
- Hindsville Quarry & Plant · 0301807
Regular Safety and Health Inspection · 8.0 on-site hours
- Hindsville Quarry & Plant · 0301807
56.12032
- Midland Quarry · 0301974
Regular Safety and Health Inspection · 0.0 on-site hours
- Arkhola Dredge & Plant · 0300379
Spot Inspection · 15.8 on-site hours
- North Harrison Quarry · 0301895
Spot Inspection · 10.8 on-site hours
- Hard Rock Quarry · 0302018
Spot Inspection · 10.8 on-site hours
- Muskogee Dredge · 3400394
56.20003(a) · S&S
- Muskogee Dredge · 3400394
56.14207
- Muskogee Dredge · 3400394
56.14112(a)(1)
- Muskogee Dredge · 3400394
Regular Safety and Health Inspection · 11.0 on-site hours
- Gore Quarry · 3401713
MACHINERY · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
Employee was cleaning around a tail pulley at the fine grind plant when a small rock fell from overhead and struck their safety helmet. The employee requested to see our occupational doctor two days later after a lingering mild headache. Employee was diagnosed with a mild concussion and placed on restricted duty of "avoid kneeling, squatting, jumping, running, climbing".
- Mountain Home Materials Quarry · 0301908
Regular Safety and Health Inspection · 9.0 on-site hours
- Mountain Home Materials Quarry · 0301908
56.14207 · $151.00 proposed
- Mountain Home Materials Quarry · 0301908
56.14100(b) · $193.00 proposed
- Conco Willard Quarries · 2300035
56.9301 · S&S · $366.00 proposed
- Conco Willard Quarries · 2300035
56.12028 · $245.00 proposed
- Conco Willard Quarries · 2300035
56.12008 · S&S · $549.00 proposed
- Conco Willard Quarries · 2300035
56.20003(a) · S&S · $366.00 proposed
- Conco Willard Quarries · 2300035
Regular Safety and Health Inspection · 29.0 on-site hours
- Conco Willard Quarries · 2300035
46.9(c)(2)(i) · $151.00 proposed
- Conco Willard Quarries · 2300035
56.14207 · $245.00 proposed
- Conco Willard Quarries · 2300035
56.14207 · $151.00 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.
SELECTED PORTFOLIO
1 linked controller.
Relationships reflect the selected mine status and current MSHA controller/operator fields.