OpenERISA

Mountain Mud Service And Supply, INC.

Gillette, WY, 827163017

EIN 20-3812190
Plans
1
Total participants
89
Filing years
2024, 2023, 2022, 2021, 2020
NAICS
211120
Plan sponsors in WyomingMining, Quarrying & Oil & Gas Extraction

Benefit plans on file

YearFormPlan #Plan nameParticipants
2024Form 5500-SF001Mountain Mud 401(K) Plan20
2023Form 5500-SF001Mountain Mud 401(K) Plan18
2022Form 5500-SF001Mountain Mud 401(K) Plan16
2021Form 5500-SF001Mountain Mud 401(K) Plan13
2020Form 5500-SF001Mountain Mud 401(K) Plan22

Data shown as filed with the U.S. Department of Labor (EBSA), filing years 2020–2025; not validated by OpenERISA. View official filings for this EIN on the DOL EFAST2 search.

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