EU
ENSIGN UNITED STATES DRILLING INC
DOT 659413MC 629716ActiveMotor CarrierInterstateZURICH AMERICAN INSURANCE COMPANY +2 · $1,000,000 · 3 policiesLASALLE, CO
COMPANY
Authority since
2008-01-14
MCS-150
2026-04-06 · 3,805,545 mi (2025)
Fleet
175 units · 521 trailers · 124 drivers
Annual mileage (VMT)
3,805,545 mi (2025)
ADDRESS
Physical
18287 WCR 394
LASALLE, CO 80645
LASALLE, CO 80645
Mailing
Same as physical
CONTACT
Phone
9703977322
Email
marcus.prochazka@ensignenergy.com
OFFICERS
Primary Officer
SPENCER THERIAULT
Title
VICE PRESIDENT
Origin
Western-northern-european
Origin candidates
French 32%
OPERATION & CARGO
Operation classification
Private Property · Authorized For Hire
Specialty
Tanker / Bulk Liquids
Cargo types
9
General FreightMetal: Sheets, Coils, RollsBuilding MaterialsMachinery, Large ObjectsLiquids / GasesOilfield EquipmentConstructionWater WellOther: PRODUCTION WATER
Self-reported by the company on its latest MCS-150 filing (FMCSA census). Reflects what the carrier is authorized and equipped to haul, not actual recent loads. Specialty is our summary of the declared cargo mix.
AUTHORITY
227 mo
Active authority
INSURANCE
3 active
ZURICH AMERICAN INSURANCE COMPANY
RISK GRADE
Elevated Risk
2 risk factors · 5 strengths
OOS RATE
4.8%
3 / 62 inspections
Fleet vs Reality
last 12 months · power-unit VINs from roadside inspections Checking local VIN index…
Elevated Risk
2 risk factors · 5 strengths · 7 data pointsSAFETY PERFORMANCE
Crash Record
31 crashes · 4 fatal · 11 with injuries · 31 tow-away
Clean Inspection Rate
95% — 59 clean of 62 inspections
Out-of-Service Rate
4.8% — driver OOS 0, vehicle OOS 3
COMPLIANCE & AUTHORITY
Operating Authority
Active operating authority on file
Authority Events
1 historical event(s) on file
MCS-150 Filing
Last filed 2026-04-06
INSURANCE
Active Coverage
3 policy(ies) on file · total max coverage $1,000,000
SUMMARY
Fatal crash 22 months ago
3 injury crashes in the last 24 months
Low OOS rate 7% (last 24 mo)
Low crash rate (1.1 per 100 trucks/yr)
95% clean inspections
Active insurance on file
Coverage $1.0M
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