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Case FileDOT 1133464
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Carrier Profile · DOT 1133464

Michael Oster

DBA: Oster & Sons

For-Hire CommonInterstateWilliston, ND 58801
Updated 2026-05-29T12:34:25.215Z·By Sarah Chen, Lead Safety Analyst·Reviewed by James Rodriguez·Methodology v2.1

Michael Oster has operated for 23.0y with a fleet of 1 power units and 1 drivers under Common authority. The company is registered as an active for-hire carrier.

Identity
Legal nameMichael Oster
DBAOster & Sons
DOT #1133464
MC #MC467258
CityWilliston
StateNorth Dakota
ZIP58801
Authority age23.0y
StatusActive
Common authority✓ Authorized
Contract authorityNot authorized
Broker authorityNot authorized
OperationInterstate
HazmatNot authorized
MCS-150 filed03/18/2026
Company officerMichael W. Oster
FMCSA SAFER →FMCSA Safety Scores (SMS) →
Fleet size
1
Power units
Drivers
1
Total drivers
Inspections
0
On record
Crashes
0
On record
OOS Rate
No inspections on record

Source: FMCSA compliance records, Truck Graph analysis. View methodology

Location

425 32ND ST EAST APT 101, Williston, ND, 58801

425 32ND ST EAST APT 101, WILLISTON, ND, 58801Open in Maps →

Inspection history

0 total inspections. OOS rate: N/A%. Showing last 5.

No inspection records found.

Source: FMCSA inspection records. View methodology

Crash history

0 crashes on record. Showing last 3.

No crash records found.

Source: FMCSA crash records. View methodology

Insurance status

Current insurance filing on record with FMCSA.

Status
Active
Insurer
GREAT WEST CASUALTY CO.
Coverage
Effective
11/12/2003

Source: FMCSA insurance filings. View methodology

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Wanzek Construction INC A Mastec Corporation
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1,154 power units · DOT 366828
Rdo Equipment Co
Fargo, ND
847 power units · DOT 244941
Strata Corporation
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807 power units · DOT 119773
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Authority timeline

Key events in this carrier's operating authority history.

Authority Granted
May 2003
FMCSA issued operating authority
Active
Current
Authority currently active

Source: FMCSA authority records and revocation orders. View methodology

Research this company

Verify independently using official government and public sources.

FMCSA SAFER System
Official DOT safety record, authority status, inspections
Google Search
News, reviews, and web presence
North Dakota Secretary of State
Business registration and corporate filings
Better Business Bureau
Complaints, ratings, and accreditation status
LinkedIn
Company employees, leadership, and network
PACER (Federal Courts)
Federal litigation, bankruptcy filings

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Michael Oster is based in Williston, ND, which is part of the larger North Dakota trucking market. Browse the full national carrier directory to compare across all 50 states.

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Frequently asked

Michael Oster

Answers from verified compliance records.

Is Michael Oster authorized to operate?

Yes. Michael Oster holds Common operating authority and is currently active.

What is Michael Oster's safety record?

Michael Oster does not have a substantial inspection history on record. This may indicate limited interstate operations.

How many trucks does Michael Oster operate?

Michael Oster operates 1 power units with approximately 1 drivers.

Is Michael Oster insured?

Michael Oster has active insurance coverage on file. Coverage amount and carrier details are shown in the insurance section above.

Has Michael Oster had any risk indicators?

No risk indicators have been detected for Michael Oster as of the most recent data sync.

What is the DOT number for Michael Oster?

Michael Oster's DOT number is 1133464 and MC number is MC467258. These identifiers are assigned by the FMCSA and can be used to look up this carrier in official compliance databases.

Cite this page

For journalists and researchers

Truck Graph data is open and citable. For press inquiries, contact our editorial team.

APA
Truck Graph. (2026). Michael Oster Safety Record, DOT 1133464. Retrieved from https://truckgraph.com/carriers/1133464
MLA
"Michael Oster Safety Record, DOT 1133464." Truck Graph, May 29, 2026, https://truckgraph.com/carriers/1133464
Chicago
"Michael Oster Safety Record, DOT 1133464." Truck Graph. Last modified May 29, 2026. https://truckgraph.com/carriers/1133464
SC
Sarah Chen
Lead Safety Analyst · 12 years freight intelligence
JR
James Rodriguez
Risk Analysis Editor
Last editorial review
Methodology v2.1 →