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ENSIGN UNITED STATES DRILLING INC
DBA: Jonah Trucking
Lasalle, CO
CarrierChk vetting signal
Review recommended
Fatal Crash on Record
1 fatality across 4 crashes reported to FMCSA in the last 24 months. A reported crash is not a finding of fault.
See details ↓
FMCSA status: Active & Authorized · DOT 659413 · MC 629716
Satisfactory
Active 18 yrs, 8 mo
Broker Vetting Summary
Key signals from current FMCSA records
Authority
Active
MC-629716 · Common carrier
Insurance
On File
Zurich American Insurance Company
Safety
Satisfactory
3.6% OOS · 51 inspections on record
Flags · 1
Fatal Crash on Record
1 fatality across 4 crashes reported to FMCSA in the last 24 months. A reported crash is not a finding of fault.
Vetting notes
- Operating authority active for 18 yrs, 8 mo
- Insurance on file: $1,000,000
- FMCSA safety rating: Satisfactory
- Vehicle out-of-service rate 7.1% — below the 20.7% national average
- Driver out-of-service rate 0.0% — below the 5.5% national average
- 51 FMCSA inspections on record
Authority & Compliance
Authority, insurance and required filings
Operating Authority
MC629716
Contract Carrier
Insurance on File
ZURICH AMERICAN INSURANCE COMPANY
BI&PD · $1,000,000 · Policy BAP 4275169
ZURICH AMERICAN INSURANCE COMPANY
Cargo · $0 · Policy BAP 4275169
ZURICH AMERICAN INSURANCE COMPANY
Bond · $0 · Policy BAP 4275169
Required Filings
Liability (BIPD)
$1,000,000
Cargo
On file
Surety bond / trust fund
On file
Company Information
Registration, contact and cargo details
FMCSA Registration
DOT Number
659413
MC Number
MC-629716
Safety Rating
Satisfactory
Entity Type
Corporation
Operation Classification
Authorized for hire, Private (property)
MCS-150 Filed
April 6, 2026
FMCSA Registration
September 18, 1996
Authority Granted
January 14, 2008
Annual Mileage
3,805,545 mi (2025)
Contact Information
Address
18287 Wcr 394, Lasalle, CO 80645
Phone
Email
Owner / Officer
Spencer Theriault
Cargo Types
General FreightMetal/Sheet SteelBuilding MaterialsMachinery/Large ObjectsLiquids/GasesOilfield EquipmentConstruction MaterialsWater/WellOther Cargo
Safety Snapshot
Out-of-service rates, violations and crashes
Safety & Inspection Summary
Total Inspections
51
Driver Inspections
39
Vehicle Inspections
28
Out-of-Service Violations
5
Violations by Category
Vehicle Maintenance27
Unsafe Driving0
Hours of Service2
OOS Rates vs. National Average
Driver OOS Rate0.0% · national avg 5.5%
✓ Below national average
Vehicle OOS Rate7.1% · national avg 20.7%
✓ Below national average
3.6% of 28 inspections in the last 24 months put a driver or vehicle out of service —
8th percentile among carriers with 25–99 inspections (lower is better).
CarrierChk calculation from FMCSA roadside inspection records, not an FMCSA score.
Inspection Trend by Year
2026
2025
2024
Violation Rate by Category
Share of roadside inspections in FMCSA's rolling 24-month window that found a violation in each category. The individual violations are listed under each inspection in Inspection Details below. None of this is the basis of the safety rating, which comes from an on-site compliance review.
Vehicle Maintenance
2 of 15 inspections
Unsafe Driving
0 of 30 inspections
Hours of Service
2 of 30 inspections
Driver Fitness
0 of 30 inspections
Controlled Substances
0 of 30 inspections
Crash History (4)
Crashes reported to FMCSA in the last 24 months. A crash appearing here is a reported event, not a finding of fault.
4
Crashes
1
Fatalities
3
Injuries
4
Tow-aways
| Date | State | Fatal | Injured | Tow | Conditions |
|---|---|---|---|---|---|
| April 12, 2026 | ND | — | 1 | Yes | No Adverse Conditions · Daylight · Dry |
| July 24, 2025 | CO | — | 1 | Yes | No Adverse Conditions · Daylight · Dry |
| April 1, 2025 | CO | — | 1 | Yes | Fog · Daylight · Dry |
| November 17, 2024 | CO | 1 | — | Yes | — |
Fleet & Operating Areas
Observed roadside activity and equipment
Where This Carrier Operates
States where this carrier's roadside inspections were recorded
FewerMore
CO21
WY12
MT2
ND2
NM2
NV1
Fleet & Equipment (51)
Vehicles identified in this carrier's inspection history. Year, make, model and equipment type are decoded from the VIN.
Power units
~27
of 175 reported to FMCSA
Trailers
~24
seen at inspection
Equipment types observed
Tractor
18
Flatbed
6
Semi-trailer
6
Tank
5
Chassis / Incomplete
3
Pickup
3
Equipment Trailer
2
Truck
2
Utility Trailer
2
Not Applicable
1
Units on record
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 2024 Ford F-250 | Pickup · Class 2 | 1FT7W2BT4REC65892 | 5 | — |
| 2013 Peterbilt 388 | Tractor · Class 8 | 1XPWP4EX3DD164889 | 3 | — |
| 2023 Roadclipper Enterprises, Inc. | Utility Trailer · 35 ft | 46UFU3520P1266933 | 3 | — |
| 2007 Peterbilt 357 | Truck · Class 8 | 1NPALB0XX7N689779 | 2 | — |
| 1994 Kenworth T800 | Tractor · Class 8 | 1XKDP4TX2RR350921 | 2 | — |
| 1994 Kenworth T800 | Tractor · Class 8 | 1XKDP4TX4RR350922 | 2 | — |
| 2012 Peterbilt 388 | Tractor · Class 8 | 1XPWP4EX9CD135248 | 2 | 1 |
| 2019 Industrias Met Gri | Tank · 48 ft | 3M7TG4836KU000072 | 2 | — |
| 2021 Industrias Met Gri | Tank · 48 ft | 3M7TG4836MU000043 | 2 | — |
| Trlr | Semi-trailer | 46UFU322XH1185248 | 2 | — |
Show all 51 units
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 2013 Big Tex | Flatbed · 40 ft | 16VGX4028D2654682 | 1 | — |
| Unpublishe | — | 17YGN14260B042296 | 1 | — |
| Trail | Semi-trailer | 1ADAFGFC645DP0209 | 1 | — |
| 2012 Doonan Specialized Trailer | Flatbed · 57 ft | 1D9BH5756C1609508 | 1 | — |
| 2013 Dakota Manufacturing Co. / Trail-eze Rigid Gooseneck | Flatbed · 50 ft | 1DAGFC045DP020971 | 1 | — |
| Homc | Semi-trailer | 1DTL00946AA | 1 | — |
| 2020 Ford F-550 | Chassis / Incomplete · Class 5 | 1FD0X5HT1LEE50864 | 1 | — |
| 2024 Ford F-550 | Chassis / Incomplete · Class 5 | 1FD0X5HT4REC89595 | 1 | — |
| 2024 Ford F-250 | Pickup · Class 2 | 1FT7W2BTXREC67405 | 1 | — |
| 1994 Great Dane Trailers | Flatbed · 96 ft | 1GRDM9623RM054407 | 1 | — |
| 2007 Great Dane Trailers | Flatbed · 96 ft | 1GRDM96277H706516 | 1 | — |
| 2023 Gmc Sierra HD | Pickup · Class 2 | 1GT19MEY0PF255982 | 1 | — |
| Hawker Pip | Semi-trailer | 1H9G24028NK635036 | 1 | — |
| 2009 Kenworth T8 Series | Truck · Class 8 | 1NKDLU0XX9R246736 | 1 | — |
| 2028 Utility Trailer Manufacturer | Flatbed · 48 ft | 1UYFS2482WA740203 | 1 | — |
| 2013 Kenworth T8 Series | Tractor · Class 8 | 1XKDD40X2DJ363849 | 1 | — |
| 2015 Kenworth T8 Series | Tractor · Class 8 | 1XKDD40X4FJ431801 | 1 | — |
| 2015 Kenworth T8 Series | Tractor · Class 8 | 1XKDD40X6FJ431802 | 1 | — |
| 2023 Kenworth T8 Series | Tractor · Class 8 | 1XKDD40X6PR245227 | 1 | — |
| 2015 Kenworth T8 Series | Tractor · Class 8 | 1XKDD40X8FJ431803 | 1 | — |
| 1994 Kenworth T800 | Tractor · Class 8 | 1XKDP4TX0RR350920 | 1 | — |
| 1994 Kenworth T800 | Tractor · Class 8 | 1XKDP4TX4RR350919 | 1 | — |
| 2007 Kenworth T8 Series | Tractor · Class 8 | 1XKDPBEX07R192917 | 1 | — |
| 2015 Kenworth T880 | Tractor · Class 8 | 1XKZD40X6FJ448802 | 1 | — |
| 2015 Kenworth T880 | Tractor · Class 8 | 1XKZD40X9FJ430858 | 1 | — |
| 2025 Kenworth T880 | Not Applicable · Class 8 | 1XKZD40X9SJ194478 | 1 | — |
| 2014 Peterbilt 367 | Tractor · Class 8 | 1XPTPWEX9ED217496 | 1 | — |
| 2012 Peterbilt 388 | Tractor · Class 8 | 1XPWP4EX7CD135247 | 1 | — |
| Aspen | — | 2A9JT4029DN125171 | 1 | — |
| Unknown | Semi-trailer | 2A9LB7048DN125175 | 1 | 1 |
| Unknown | Semi-trailer | 2ATA1222XAU304273 | 1 | — |
| 2017 Ram 5500 | Chassis / Incomplete · Class 5 | 3C7WRNFL1HG734056 | 1 | — |
| 2019 Industrias Met Gri | Tank · 48 ft | 3M7TG4831KU000061 | 1 | — |
| 2020 Industrias Met Gri | Tank · 48 ft | 3M7TG4837LU000129 | 1 | — |
| 2021 Industrias Met Gri | Tank · 48 ft | 3M7TG483XMU000045 | 1 | — |
| 2020 Kenworth T8 Series | Tractor · Class 8 | 3WKDD40X3LF379674 | 1 | — |
| 2020 Kenworth T8 Series | Tractor · Class 8 | 3WKDD40X6LF379653 | 1 | — |
| Frac | — | 411060 | 1 | — |
| 2023 Roadclipper Enterprises, Inc. | Utility Trailer · 35 ft | 46UFU3521P1271087 | 1 | — |
| 2025 Kalyn Siebert | Equipment Trailer · 46 ft | 5DDKE4653S1172651 | 1 | — |
| 2026 Kalyn Siebert | Equipment Trailer · 50 ft | 5DDKE5057T1178288 | 1 | — |
A vehicle appearing here was recorded in an inspection — it is not proof the carrier still operates it today.
Inspection Details
Each roadside inspection with its violations
Inspection Records (51)
| Date | Report # | Location | Level | Viol | OOS | Shipper | Unit Type | Make | VIN | License |
|---|---|---|---|---|---|---|---|---|---|---|
| September 27, 2026 | TJJW000191 | WY, WY | II | 3 | 1 | ENSIGN UNITED STATES DRILLING | Straight Truck Semi-trailer |
GMC ROADC |
1GT19MEY2PF255319 46UFU3221H1191150 |
CO BNVW75 CO AIX784 |
| 393.43DBMA | OOSBrake - Breakaway not attached to the towing vehicle | Brakes All Others | ||||||||
| 393.60D | Windshield / Windows - Tinting permits less than 70% of light transmittance | Windshield/ Glass/ Markings | ||||||||
| 393.95A1 | Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated. | Emergency Equipment | ||||||||
| September 2, 2026 | PAMK000826 | WY, WY | I | 7 | 2 | CARRIER | Straight Truck Semi-trailer |
FORD SERVI |
1FD0X5HT4REC89595 1S9T1AD27HL976032 |
CO BLDF65 NM 8751K |
| 393.43DBMA | OOSBrake - Breakaway not attached to the towing vehicle | Brakes All Others | ||||||||
| 396.3A1-BOS | OOSBrake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination | Brake Out Of Service | ||||||||
| 393.48A-BIHE | Hydraulic/Electric Brake - Inoperative other than a steering axle. | Brakes All Others | ||||||||
| 393.48A-BIHE | Hydraulic/Electric Brake - Inoperative other than a steering axle. | Brakes All Others | ||||||||
| 393.48A-BIHE | Hydraulic/Electric Brake - Inoperative other than a steering axle. | Brakes All Others | ||||||||
| 393.48A-BIHE | Hydraulic/Electric Brake - Inoperative other than a steering axle. | Brakes All Others | ||||||||
| 393.95A4-EEUS | Emergency Equipment - Fire Extinguishers - unsecured | Emergency Equipment | ||||||||
| August 19, 2026 | 1569253650 | DUMONT CO | III | 1 | — | ENSIGN TRUCKING | Truck Tractor Semi-trailer |
KENWORTH INDUSTRIAS MET GRI |
1XKZD40X9SJ194478 3M7TG4836MU000043 |
CO BUSJ47 CO BRM469 |
| 395.20BELDNV | HOS (ELD) - The ELD display screen is not viewable by an authorized official without entering the CMV | Incomplete/Wrong Log | ||||||||
| June 30, 2026 | 0262542513 | PLATTEVILLE CO | II | — | — | N/A | Straight Truck |
PETERBILT |
1NPALB0XX7N689779 |
CO BUSC49 |
| May 23, 2026 | HP66000205 | BOWMAN ND | III | — | — | ENSIGN | Straight Truck Semi-trailer |
FORD HAWKER PIP |
1FD0X5HT4REC89595 1H9G24028NK635036 |
CO BLDF65 CO AYWR87 |
| May 21, 2026 | 1712021186 | COMMERCE CITY CO | I | 1 | — | ENSIGN UNITED STATES DRILLING INC | Truck Tractor Semi-trailer |
KENWORTH INDUSTRIAS MET GRI |
3WKDD40X6LF379653 3M7TG4831KU000061 |
CO CDWR13 CO 497XQH |
| 392.2-SLLEWG3 | State/Local Laws - Excessive weight - More than 5000 lbs over on allowable gross weight | |||||||||
| May 7, 2026 | U610001702 | BROADUS MT | III | 1 | — | JOHAN TRUCKING | Truck Tractor Trailer Semi-trailer |
KENWORTH ASPEN UNPUBLISHE |
1XKDP4TX4RR350922 2A9JT4029DN125171 4U3J06036TL025009 |
CO BLDT64 CO BRM146 CO CDXY70 |
| 392.2-SLLIRP | State/Local Laws - IRP apportioned tag or registration violation | |||||||||
| April 11, 2026 | U574201971 | BROADUS MT | III | — | — | JONAH | Truck Tractor Semi-trailer |
KENWORTH UNKNOWN |
1XKDP4TX4RR350922 2ATA1222XAU304273 |
CO BLDT64 AB 6XF665 |
| February 10, 2026 | 1749420380 | HEREFORD CO | II | — | — | N/A | Truck Tractor Semi-trailer |
KENWORTH INDUSTRIAS MET GRI |
1XKDD40X6PR245227 3M7TG4836KU000072 |
CO BEBP12 CO CDXZ24 |
| January 13, 2026 | 0991770107 | AULT CO | III | 1 | — | SELF | Truck Tractor |
KENWORTH |
1XKDPBEX07R192917 |
CO BUSD50 |
| 392.2-SLLTL | State/Local Laws - Misc. traffic law violation | |||||||||
Shippers Seen at Inspections
Shipper names recorded by roadside inspectors over roughly the last three years. Only inspected loads appear, so this is a sample of who the carrier hauls for, not a complete customer list. Names are as entered at the roadside; blanks and placeholders such as “N/A” or “same as carrier” are left out.
| Shipper | Inspections | Most recent |
|---|---|---|
| CHEVRON | 2 | January 4, 2024 |
| ENSIGN TRUCKING | 1 | August 19, 2026 |
| JOHAN TRUCKING | 1 | May 7, 2026 |
| CIVITAS RESOURCES, INC | 1 | October 23, 2025 |
| XCEL | 1 | September 15, 2025 |
| PEAK RENTALS | 1 | August 19, 2025 |
| ENSIGN UNITED STATES DRILLING IN | 1 | July 24, 2025 |
| ENSIGN TUNITED STATES DRILLING INC | 1 | October 29, 2024 |
| BRIDGEWATER | 1 | August 1, 2024 |
| TARA ENERGY SERVICES | 1 | February 25, 2024 |
| ENSIGN US DRILLING | 1 | January 13, 2024 |
History & Filings
Authority, insurance and process-agent records
Authority History
| Date | Status | Type |
|---|---|---|
| January 14, 2008 | GRANTED | Contract Carrier |
Insurance & Revocation Filings
| Date | Type | Status |
|---|---|---|
| November 1, 2022 | Cargo | On file |
| November 1, 2022 | Broker's Surety Bond | On file |
| November 1, 2022 | BI&PD Primary/Excess | On file |
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Data sourced from FMCSA MCMIS via Socrata. Record last updated: October 11, 2026.
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