ACTIVE / CONTROLLER PORTFOLIO

Pro Frac Holding Corp

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

MSHA CONTROLLER ID0171280

MINE PORTFOLIO

7 of 7 mines and facilities

2025-01-01 – 2026-10-13. Active records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
Alpine Silica-Kermit4105309 · Active6/8 quarters reportedWinkler, TXSurface · MSHA: Sand, Common0116,979341130.8
Alpine Silica-Lamesa4105655 · Active6/8 quarters reportedDawson, TXSurface · MSHA: Sand, Industrial NEC0152,78451101.5
Alpine Silica-Monahans4105320 · Active6/8 quarters reportedEctor, TXSurface · MSHA: Construction Sand and Gravel0191,520140125.0
Alpine Silica-San Antonio4105426 · Active6/8 quarters reportedBexar, TXSurface · MSHA: Sand, Industrial NEC0224,533271130.8
Hat Creek1601573 · Active6/8 quarters reportedCaddo, LASurface · MSHA: Sand, Common0170,33214038.3
River Ridge0302065 · Active6/8 quarters reportedMiller, ARSurface · MSHA: Sand, Common0241,62217260.3
Sunny Point1601608 · Active6/8 quarters reportedCaddo, LASurface · MSHA: Sand, Common0226,10718281.5

LOCATION

Portfolio map

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

Mine coordinates

2025-01-01 – 2026-10-13Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

129

16 significant & substantial (S&S)

  1. 2025 Q117
  2. 2025 Q215
  3. 2025 Q320
  4. 2025 Q428
  5. 2026 Q17
  6. 2026 Q222
  7. 2026 Q317
  8. 2026 Q4 *3

Accident records

7

1 records classified as fatality

  1. 2025 Q11
  2. 2025 Q21
  3. 2025 Q30
  4. 2025 Q41
  5. 2026 Q13
  6. 2026 Q20
  7. 2026 Q31
  8. 2026 Q4 *0

Proposed penalties · USD

31,254.00

116 of 129 violations with amounts

  1. 2025 Q12,567
  2. 2025 Q24,015
  3. 2025 Q39,705
  4. 2025 Q44,286
  5. 2026 Q13,872
  6. 2026 Q25,203
  7. 2026 Q31,606
  8. 2026 Q4 *—

On-site inspection hours

668.00

37 inspections · 37 with hours

  1. 2025 Q1125.50
  2. 2025 Q255.75
  3. 2025 Q396.25
  4. 2025 Q482.25
  5. 2026 Q1146.75
  6. 2026 Q275.75
  7. 2026 Q385.75
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q11702,567.00107125.5
2025-Q21524,015.0010455.8
2025-Q32049,705.0000796.3
2025-Q42804,286.0010582.3
2026-Q1713,872.00314146.8
2026-Q22235,203.0000675.8
2026-Q31731,606.0010485.8
2026-Q4 *33—000—

Most cited CFR sections

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

Safety activity

  1. violation5007978
    Alpine Silica-San Antonio · 4105426

    56.18002(a) · S&S

  2. violation5007977
    Alpine Silica-San Antonio · 4105426

    56.18002(a) · S&S

  3. violation5007976
    Alpine Silica-San Antonio · 4105426

    56.15005 · S&S

  4. violation9748309
    Alpine Silica-San Antonio · 4105426

    56.14101(a)(2) · S&S

  5. violation9748308
    Alpine Silica-San Antonio · 4105426

    56.12005

  6. violation9748307
    Alpine Silica-San Antonio · 4105426

    46.9(b)(5)

  7. violation9748306
    Alpine Silica-San Antonio · 4105426

    56.14206(b)

  8. violation9748305
    Alpine Silica-San Antonio · 4105426

    56.14207 · S&S

  9. violation9748304
    Alpine Silica-San Antonio · 4105426

    56.14100(c)

  10. violation5170346
    Alpine Silica-San Antonio · 4105426

    56.11001

  11. violation5170345
    Alpine Silica-San Antonio · 4105426

    56.14100(b)

  12. inspectionF03BB5E
    Alpine Silica-San Antonio · 4105426

    Regular Safety and Health Inspection · 9.5 on-site hours

  13. inspectionF018C99
    Alpine Silica-Lamesa · 4105655

    Regular Safety and Health Inspection · 17.0 on-site hours

  14. violation5085513
    Alpine Silica-Monahans · 4105320

    56.20003(a) · $151.00 proposed

  15. violation5085512
    Alpine Silica-Monahans · 4105320

    56.14107(a) · $151.00 proposed

  16. inspectionF02B8AE
    Alpine Silica-Monahans · 4105320

    Regular Safety and Health Inspection · 46.0 on-site hours

  17. violation5178267
    Hat Creek · 1601573

    56.14100(a) · $151.00 proposed

  18. violation5178266
    Hat Creek · 1601573

    56.14100(c) · S&S · $398.00 proposed

  19. inspectionF04123F
    Hat Creek · 1601573

    Regular Safety and Health Inspection · 13.3 on-site hours

  20. violation5178265
    Hat Creek · 1601573

    56.14100(a) · $151.00 proposed

  21. violation5178264
    Hat Creek · 1601573

    56.4200(b)(2) · $151.00 proposed

  22. violation5178263
    Hat Creek · 1601573

    56.14100(a) · $151.00 proposed

  23. violation5178262
    Hat Creek · 1601573

    56.12004 · $151.00 proposed

  24. violation5178261
    Hat Creek · 1601573

    47.44(b) · $151.00 proposed

  25. accident220262110020
    River Ridge · 0302065

    POWERED HAULAGE · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee was operating a skid steer and while backing away from the pile the machine bucked due to uneven ground. When the equipment bucked it caused the employees feet to fly up and come down outside the cab and was pinched between the bucket and the entrance step. This caused injury to both the employee's feet.

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 operator.

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