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REX LEE SIEMER TRUCKING LLC

DOT 637791MC 384420ActiveInterstateGREAT WEST CASUALTY CO.MERCER, MO

COMPANY

Authority since
2010-05-20
MCS-150
2026-02-18 · 879,684 mi (2024)
Fleet
17 units · 20 trailers · 9 drivers
Annual mileage (VMT)
879,684 mi (2024)
Owner origin
Western-northern-european
Origin candidates
German 77%

ADDRESS

Physical
14603 US HWY 65
MERCER, MO 64661-9705
Mailing
Same as physical

CONTACT

Phone
6603824665
Email
rsiemer@grm.net

OFFICERS

Primary Officer
DONA SIEMER
Title
OWNER
Origin
Western-northern-european

OPERATION & CARGO

Operation classification
Authorized For Hire
Specialty
Refrigerated / Produce
Cargo types
18
General FreightMetal: Sheets, Coils, RollsLogs, Poles, Beams, LumberBuilding MaterialsMachinery, Large ObjectsFresh ProduceLivestockGrain, Feed, HayMeatChemicalsCommodities Dry BulkRefrigerated FoodBeveragesPaper ProductsUtilityFarm SuppliesConstructionOther: 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
198 mo
Active authority
INSURANCE
1 active
GREAT WEST CASUALTY CO.
RISK GRADE
Elevated Risk
3 risk factors · 2 strengths
OOS RATE
23.8%
5 / 21 inspections

Fleet vs Reality

last 12 months · power-unit VINs from roadside inspections
Checking local VIN index…

Elevated Risk

3 risk factors · 2 strengths · 6 data points

SAFETY PERFORMANCE

Crash Record
19 crashes · 1 fatal · 5 with injuries · 19 tow-away
Clean Inspection Rate
76% — 16 clean of 21 inspections
Out-of-Service Rate
23.8% — driver OOS 3, vehicle OOS 2

COMPLIANCE & AUTHORITY

Operating Authority
Active operating authority on file
Authority Events
7 historical event(s) on file
MCS-150 Filing
Last filed 2026-02-18

INSURANCE

Active Coverage
1 policy(ies) on file · total max coverage $1,000,000

SUMMARY

High OOS rate 29% (last 24 mo)
5.9 crashes per 100 trucks/yr
1.9 violations per inspection
Active insurance on file
Coverage $1.0M

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