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 – 2026-10-18. 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 NEC0224,533271132.0
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 – 2026-10-18Applies 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

669.25

38 inspections · 38 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 *1.25
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—0011.3

Most cited CFR sections

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

Safety activity

  1. violation5005994
    Sunny Point · 1601608

    47.41(a) · $151.00 proposed

  2. violation5005993
    Sunny Point · 1601608

    56.4402 · $151.00 proposed

  3. inspectionF03E082
    Sunny Point · 1601608

    103 (g) Written Notification Hazard Complaint Inspectio · 2.5 on-site hours

  4. violation5005992
    Sunny Point · 1601608

    50.11(b)(1) · $151.00 proposed

  5. accident220261030036
    Alpine Silica-San Antonio · 4105426

    SLIP OR FALL OF PERSON · FATALITY

    Accident narrative

    Employee unhooked lanyard and fell through roof resulting in fatal injuries.

  6. inspectionF0370F9
    Alpine Silica-San Antonio · 4105426

    Fatal Accident Investigation · 71.3 on-site hours

  7. violation5172680
    Alpine Silica-San Antonio · 4105426

    Description not reported

  8. violation5007950
    Alpine Silica-San Antonio · 4105426

    56.12018 · $465.00 proposed

  9. inspectionF031F01
    Alpine Silica-San Antonio · 4105426

    Spot Inspection · 9.0 on-site hours

  10. violation9778367
    Alpine Silica-Monahans · 4105320

    56.14101(a)(2) · $245.00 proposed

  11. violation9778366
    Alpine Silica-Monahans · 4105320

    56.12008 · $398.00 proposed

  12. violation9778365
    Alpine Silica-Monahans · 4105320

    56.11001 · S&S · $1,968.00 proposed

  13. violation9778364
    Alpine Silica-Monahans · 4105320

    56.9301 · $398.00 proposed

  14. violation9778363
    Alpine Silica-Monahans · 4105320

    56.4130(b) · $398.00 proposed

  15. inspectionF001524
    Alpine Silica-Monahans · 4105320

    Regular Safety and Health Inspection · 51.0 on-site hours

  16. inspectionF015D01
    Alpine Silica-Lamesa · 4105655

    Regular Safety and Health Inspection · 15.5 on-site hours

  17. accident220260620022
    Alpine Silica-Kermit · 4105309

    HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    Employee changed a bearing on an exhaust fan and was reinstalling the V-belts by hand when left pointer fingertip was caught between the V-belt and pulley sheave. The belt was rotated to free their finger. After removing their glove, a laceration was found. Employee was taken to the hospital, received four sutures, and returned to duty after treatment.

  18. accident220260200022
    Sunny Point · 1601608

    SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY

    Accident narrative

    While monitoring a slurry tank pump due to abnormal noise and visible smoke, the employee was positioned in the area when material was unexpectedly expelled from the pump. The employee stepped backward and lost balance, resulting in contact with the ground. The employee reported an abrasion above the right eye and discomfort to the right hip.�

  19. violation5007694
    River Ridge · 0302065

    56.12008 · $151.00 proposed

  20. violation5007693
    River Ridge · 0302065

    56.14112(a)(1) · $209.00 proposed

  21. violation5007692
    River Ridge · 0302065

    56.11012 · $151.00 proposed

  22. violation5007691
    River Ridge · 0302065

    56.11003 · $151.00 proposed

  23. inspectionF02587E
    River Ridge · 0302065

    Regular Safety and Health Inspection · 19.5 on-site hours

  24. violation5007690
    River Ridge · 0302065

    56.4201(a)(2) · $151.00 proposed

  25. violation5171625
    Alpine Silica-Kermit · 4105309

    56.12008 · $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.

SELECTED PORTFOLIO

1 linked operator.

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