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MARK WALKER
DBA: Mark Walker Trucking
Tahlequah, OK
CarrierChk vetting signal
Review recommended
Elevated Out-of-Service Rate
42.4% of this carrier's roadside inspections in the last 24 months put a driver or vehicle out of service — higher than 94% of carriers with a comparable number of inspections. This is a CarrierChk calculation from FMCSA inspection records, not an FMCSA rating.
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FMCSA status: Active & Authorized · DOT 819251 · MC 436570
Conditional
Active 3 yrs, 5 mo · first granted 2002
Broker Vetting Summary
Key signals from current FMCSA records
Authority
Active
MC-436570 · Common carrier
Insurance
On File
Navigators Insurance Company
Safety
Conditional
42.4% OOS · 51 inspections on record
Flags · 1
Elevated Out-of-Service Rate
42.4% of this carrier's roadside inspections in the last 24 months put a driver or vehicle out of service — higher than 94% of carriers with a comparable number of inspections. This is a CarrierChk calculation from FMCSA inspection records, not an FMCSA rating.
Vetting notes
- Operating authority active 3 yrs, 5 mo, reinstated after a revocation effective May 15, 2023; first granted August 21, 2002 (24 yrs, 2 mo ago)
- Previously ordered out of service on April 24, 2023 (Unsatisfactory = Unfit) — no longer active
- Insurance on file: $750,000
- FMCSA safety rating: Conditional
- Vehicle out-of-service rate 44.4% — above the 20.7% national average
- Driver out-of-service rate 7.1% — above the 5.5% national average
- 51 FMCSA inspections on record
Authority & Compliance
Authority, insurance and required filings
Operating Authority
MC436570
Contract Carrier
Insurance on File
NAVIGATORS INSURANCE COMPANY
BI&PD · $750,000 · Policy GA25MOT02358800
Required Filings
Liability (BIPD)
$750,000
Company Information
Registration, contact and cargo details
FMCSA Registration
DOT Number
819251
MC Number
MC-436570
Safety Rating
Conditional
Entity Type
Individual
Operation Classification
Authorized for hire
MCS-150 Filed
July 15, 2025
FMCSA Registration
July 14, 1999
Authority First Granted
August 21, 2002
Authority Reinstated
After May 15, 2023
Annual Mileage
242,808 mi (2024)
Contact Information
Location
Tahlequah, OK
Email
Cargo Types
General FreightHousehold GoodsBuilding MaterialsFresh ProduceLiquids/GasesGrain/FeedRefrigerated FoodConstruction MaterialsMeatOther Cargo
Safety Snapshot
Out-of-service rates, violations and crashes
Safety & Inspection Summary
Total Inspections
51
Driver Inspections
21
Vehicle Inspections
38
Out-of-Service Violations
27
Violations by Category
Vehicle Maintenance147
Unsafe Driving11
Hours of Service14
OOS Rates vs. National Average
Driver OOS Rate7.1% · national avg 5.5%
⚠ Above national average (1.6pp higher)
Vehicle OOS Rate44.4% · national avg 20.7%
⚠ Above national average (23.7pp higher)
42.4% of 33 inspections in the last 24 months put a driver or vehicle out of service —
94th 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
23 of 27 inspections
Unsafe Driving
5 of 35 inspections
Hours of Service
6 of 35 inspections
Driver Fitness
0 of 35 inspections
Controlled Substances
0 of 35 inspections
Crash History (2)
Crashes reported to FMCSA in the last 24 months. A crash appearing here is a reported event, not a finding of fault.
2
Crashes
0
Fatalities
2
Injuries
2
Tow-aways
| Date | State | Fatal | Injured | Tow | Conditions |
|---|---|---|---|---|---|
| August 4, 2025 | OK | — | 1 | Yes | No Adverse Conditions · Daylight · Dry |
| August 4, 2025 | OK | — | 1 | Yes | No Adverse Conditions · Daylight · Dry |
Fleet & Operating Areas
Observed roadside activity and equipment
Where This Carrier Operates
States where this carrier's roadside inspections were recorded
FewerMore
OK24
MO5
AR4
IL4
TX4
CO2
and 2 more states
Fleet & Equipment (36)
Vehicles identified in this carrier's inspection history. Year, make, model and equipment type are decoded from the VIN.
Power units
~15
of 13 reported to FMCSA
Trailers
~21
seen at inspection
Equipment types observed
Tractor
15
Dry Van
10
Tank
5
Semi-trailer
4
Grain / Hopper
2
Units on record
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 2021 Kenworth T680 | Tractor · Class 8 | 1XKYD49XXMJ472807 | 6 | 3 |
| 2023 Kenworth T680 | Tractor · Class 8 | 1XKYDP9X1PJ251649 | 6 | 2 |
| 2021 Kenworth T680 | Tractor · Class 8 | 1XKYD49X8MJ472806 | 5 | 1 |
| 2022 Polar Tank Trailer | Tank · 43 ft | 3H6KL4322N3117762 | 5 | 1 |
| 2021 Utility Trailer Manufacturer | Dry Van · 53 ft | 3UTVS2537M8268268 | 5 | 3 |
| 2000 Freightliner Long Conv. | Tractor · Class 8 | 1FUPCSZB6YDA91622 | 4 | 1 |
| 2016 Utility Trailer Manufacturer | Dry Van · 53 ft | 1UYVS2535GU189313 | 4 | 3 |
| 2022 Dorsey | Grain / Hopper · 45 ft | 7KYCW4523NED32792 | 4 | 1 |
| 2005 Freightliner CST120 | Tractor · Class 8 | 1FUJBBCK75LN67084 | 3 | 3 |
| 1996 Freightliner USF-1E | Tractor · Class 8 | 1FUYDZYB2TH614743 | 3 | — |
Show all 36 units
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 2021 Kenworth T680 | Tractor · Class 8 | 1XKYD49X6MJ472805 | 3 | 2 |
| 2017 Kenworth T680 | Tractor · Class 8 | 1XKYDP9X8HJ139318 | 3 | 1 |
| 2017 Kenworth T680 | Tractor · Class 8 | 1XKYDP9X8HJ139321 | 3 | — |
| Trlr | Semi-trailer | 1D9DS2424XF266001 | 2 | 2 |
| Unk | Semi-trailer | 1M9L145265C343653 | 2 | — |
| 2016 Utility Trailer Manufacturer | Dry Van · 53 ft | 1UYVS2533GU189309 | 2 | 1 |
| 2015 Utility Trailer Manufacturer | Dry Van · 53 ft | 1UYVS253XFM332576 | 2 | 1 |
| 2026 Kenworth T680 | Tractor · Class 8 | 1XKYD49X3TJ222744 | 2 | 1 |
| 1999 Etnyre | Tank · 44 ft | 1E9T44206XE007098 | 1 | — |
| E.d E | Semi-trailer | 1E9T97920NE007279 | 1 | — |
| 2000 Polar Tank Trailer | Tank · 43 ft | 1PMA14322Y1022489 | 1 | — |
| 1998 Polar Tank Trailer | Tank · 43 ft | 1PMA14323W1020330 | 1 | — |
| 1999 Polar Tank Trailer | Tank · 42 ft | 1PMC14221X2021501 | 1 | — |
| 2020 Utility Trailer Manufacturer | Dry Van · 53 ft | 1UYVS2530L6982405 | 1 | — |
| 2013 Utility Trailer Manufacturer | Dry Van · 53 ft | 1UYVS2531DP606310 | 1 | — |
| 2016 Utility Trailer Manufacturer | Dry Van · 53 ft | 1UYVS2533GU188936 | 1 | — |
| 2017 Utility Trailer Manufacturer | Dry Van · 53 ft | 1UYVS2534HU891169 | 1 | 1 |
| 2016 Utility Trailer Manufacturer | Dry Van · 53 ft | 1UYVS2539GU188939 | 1 | 1 |
| 2018 Utility Trailer Manufacturer | Dry Van · 53 ft | 1UYVS253XJ6220504 | 1 | 1 |
| 2017 Kenworth T680 | Tractor · Class 8 | 1XKYDP9X6HJ139320 | 1 | 1 |
| 1987 Peterbilt 359 | Tractor · Class 8 | 1XP9DB9X3HN208121 | 1 | — |
| 2021 Freightliner Cascadia | Tractor · Class 8 | 3AKJHHDV1MSMK9876 | 1 | 1 |
| 2021 International LT625 | Tractor · Class 8 | 3HSDZTZR0MN176092 | 1 | — |
| 2026 Dorsey | Grain / Hopper · 45 ft | 7KYCW4526TED45999 | 1 | — |
| Ptrb | Tractor | D376932GL | 1 | — |
| Util | Semi-trailer | UYVS2534HU891169 | 1 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| October 28, 2026 | 7250000476 | LAKE VILLAGE AR | III | 2 | 2 | NA | Truck Tractor Semi-trailer |
KENWORTH UTILITY |
1XKYDP9X1PJ251649 1UYVS2531EM834701 |
OK 3NG536 OK AY4546 |
| 395.3A3I-HOSPDIT | OOSHOS (Property) - Driving more than 11 hours following 10 consecutive hours off duty at the time of inspection. Time | Hours | ||||||||
| 395.3A2-HOSPDIT | OOSHOS (Property) - Driver driving beyond the 14 hour after coming on duty following 10 consecutive hours off duty at the time of inspection. Time | Hours | ||||||||
| October 13, 2026 | 8260000627 | WEST MEMPHIS AR | II | 3 | 2 | N/A | Truck Tractor Semi-trailer |
KENWORTH UTILITY |
1XKYD49X3TJ222744 1UYVS253XK6698455 |
OK 3NB745 OK BQ9101 |
| 393.75A3-TAOLTIS | OOSTires - All others, leaking in tread area and inflation less than 50% of the maximum inflation pressure on tire equipped with ATIS | Tires | ||||||||
| 395.8A1-HOSP | OOSHOS (Property) - Failing to have a record of duty status using the method prescribed | Incomplete/Wrong Log | ||||||||
| 395.22H4-ELDBRODS | HOS (ELD) - In-Vehicle Information - Failing to have a supply of blank driver's records of duty status graph-grids sufficient to record the driver's duty status a | EOBR Related | ||||||||
| September 22, 2026 | V262590442 | TX, TX | II | 8 | — | GREENLEAF NURSERY | Truck Tractor Semi-trailer |
KENWORTH — |
1XKYD49X6MJ472805 1UYVS253XK6698455 |
OK 3LM252 OK BQ9101 |
| 390.21TB2-DOT | Operate a CMV without USDOT number displayed. Must be preceded by the letters USDOT | |||||||||
| 393.19 | Inoperative/Defective Hazard Warning Lamp | Lighting | ||||||||
| 393.45D-B | Air Brake - Audible air leak at a proper connection | Brakes All Others | ||||||||
| 393.9A-LBL | Lighting - Backup lamp inoperative | Lighting | ||||||||
| 393.9A-LSLI | Lighting - Stop lamps - Any inoperative. | Lighting | ||||||||
| 393.9A-LTSIR | Lighting - Turn signal -Any inoperative on a unit that is not the rearmost unit | Lighting | ||||||||
| 393.9A-LTSIR | Lighting - Turn signal -Any inoperative on a unit that is not the rearmost unit | Lighting | ||||||||
| 396.3A1-OAL | Other - Any air leak not attributed to the brake or suspension system. | Brakes All Others | ||||||||
| July 23, 2026 | W500174746 | OK, OK | III | — | — | ERGON | Truck Tractor Semi-trailer |
KENWORTH E.D E |
1XKYD49XXMJ472807 1E9T97920NE007279 |
OK 3LM254 OK AZ5370 |
| July 1, 2026 | CTPRW00284 | MI, MI | I | 4 | 2 | CARRIER | Truck Tractor Semi-trailer |
FREIGHTLINER UTILITY TRAILER MANUFACTURER |
3AKJHHDV1MSMK9876 3UTVS2537M8268268 |
OK 3NS647 OK BW5572 |
| 395.8F1-HOSM | OOSHOS (Manner) - Driver's record of duty status not current to the time shown for last change of duty status. Date and Time: | Incomplete/Wrong Log | ||||||||
| 395.8K2-HOSRC | OOSHOS (Manner) - Driver failed to retain a copy of each record of duty status for the previous 7 consecutive days which shall be in his/her possession and available | Incomplete/Wrong Log | ||||||||
| 395.34A1-ELDDFN | HOS (ELD) - Driver failed to note the malfunction of the ELD and provide written notice of the malfunction to the motor carrier within 24 hours | Incomplete/Wrong Log | ||||||||
| 392.2-SLLLR | State/Local Laws - Lane restriction violation | Misc Violations | ||||||||
| May 28, 2026 | 4178630163 | I-55, IL | III | 2 | — | LURVEY LANDSCAPE SUPPLY | Truck Tractor Semi-trailer |
KENWORTH UTILITY TRAILER MANUFACTURER |
1XKYDP9X1PJ251649 3UTVS2537M8268268 |
OK 3NG536 OK BW5572 |
| 395.8F01 | Drivers record of duty status not current | Incomplete/Wrong Log | ||||||||
| 393.60C | Windshield - Damaged or Discolored | Windshield/ Glass/ Markings | ||||||||
| May 21, 2026 | 5005200438 | 032 - LITCHFIELD - I-55 N/B, IL | I | 5 | 1 | GREENLEAF (PLANTS) | Truck Tractor Semi-trailer |
KENWORTH UTILITY TRAILER MANUFACTURER |
1XKYD49X6MJ472805 3UTVS2537M8268268 |
OK 3LM252 OK BW5572 |
| 396.3A1BL | OOSBrake system pressure loss | Brakes All Others | ||||||||
| 393.9T | Inoperable tail lamp | Lighting | ||||||||
| 393.45DLPC | Brake Connections with Leaks - Connection to Power Unit | Brakes All Others | ||||||||
| 396.3A1-LC | Brake - Leak from air chamber | Brakes All Others | ||||||||
| 393.60C | Windshield - Damaged or Discolored | Windshield/ Glass/ Markings | ||||||||
| April 27, 2026 | 5005400448 | US-20/I-39, IL | II | 6 | 1 | NONE | Truck Tractor Semi-trailer |
KENWORTH UTILITY TRAILER MANUFACTURER |
1XKYDP9X1PJ251649 3UTVS2537M8268268 |
OK 3NG536 OK BW5572 |
| 393.75A3 | OOSTire-flat and/or audible air leak | Tires | ||||||||
| 393.75C | Tire-other tread depth less than 2/32 of inch measured in a major tread groove | Tires | ||||||||
| 393.60C | Windshield - Damaged or Discolored | Windshield/ Glass/ Markings | ||||||||
| 393.55C2 | CMV other than truck-tractor manufactured on or after March 1, 1998 not equipped with an antilock brake system | Brakes All Others | ||||||||
| 393.47E | Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt | Brakes Out of Adjustment | ||||||||
| 393.53B | CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear | Brakes All Others | ||||||||
| April 15, 2026 | P113159868 | SH 88 @ EW 560, OK | II | 1 | — | GREENLEAF NURSERY | Truck Tractor Semi-trailer |
INTERNATIONAL UTILITY TRAILER MANUFACTURER |
3HSDZTZR0MN176092 1UYVS2531DP606310 |
OK 153C84 OK DS2652 |
| 396.17C-PI | Operating a CMV without documentation of a periodic inspection | Inspection Reports | ||||||||
| March 30, 2026 | 1378531579 | LAMAR CO | I | 5 | 1 | GREENLEAF NURSERY | Truck Tractor Semi-trailer |
KENWORTH UTILITY TRAILER MANUFACTURER |
1XKYD49X6MJ472805 1UYVS253XJ6220504 |
OK 3LM252 OK AT4961 |
| 393.48A-BI-SA | OOSBrake - Inoperative on a steering axle | Brakes All Others | ||||||||
| 393.9A-LBL | Lighting - Backup lamp inoperative | Lighting | ||||||||
| 393.55E-B | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998 | Brakes All Others | ||||||||
| 393.3A1-TARPSWD | Tires - Presence of rubber-coated cord or cured rubber plug in the sidewall on a dual set of tires. | Tires | ||||||||
| 393.45D-B | Air Brake - Audible air leak at a proper connection | Brakes All Others | ||||||||
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 |
|---|---|---|
| GREENLEAF NURSERY COMPANY | 9 | September 22, 2026 |
| LION OIL COMPANY | 4 | October 11, 2024 |
| APAC | 3 | September 23, 2025 |
| DELEK TRADING AND SUPPLY | 2 | June 10, 2025 |
| ASPHALT & FUEL SUPPLY | 2 | May 15, 2025 |
| MUSKOGEE SAND | 2 | March 10, 2025 |
| ERGON | 1 | July 23, 2026 |
| LURVEY LANDSCAPE SUPPLY | 1 | May 28, 2026 |
| GREENLEAF (PLANTS) | 1 | May 21, 2026 |
| CALLOWAYS NURSERY | 1 | March 18, 2025 |
History & Filings
Authority, insurance and process-agent records
Authority History
| Date | Status | Type |
|---|---|---|
| November 3, 2023 | DISCONTINUED REVOCATION | Contract |
| October 11, 2023 | INVOLUNTARY REVOCATION | Contract |
| May 15, 2023 | REVOKED | Contract Carrier |
| November 9, 2022 | DISCONTINUED REVOCATION | Contract |
| October 11, 2022 | INVOLUNTARY REVOCATION | Contract |
| November 8, 2017 | DISCONTINUED REVOCATION | Contract |
| October 27, 2017 | INVOLUNTARY REVOCATION | Contract |
| November 8, 2016 | DISCONTINUED REVOCATION | Contract |
| October 11, 2016 | INVOLUNTARY REVOCATION | Contract |
| December 3, 2013 | REINSTATED | Contract Carrier |
Insurance & Revocation Filings
| Date | Type | Status |
|---|---|---|
| November 7, 2025 | BI&PD Primary/Excess | On file |
| September 30, 2013 | CONTRACT | On Record |
| January 8, 2007 | CONTRACT | On Record |
| April 14, 2006 | CONTRACT | On Record |
| February 27, 2004 | CONTRACT | On Record |
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Data sourced from FMCSA MCMIS via Socrata. Record last updated: October 19, 2026.
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